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The Koehler Method of Guard Dog Training; An Effective & Authoritative Guide for Selecting, Training & Maintaining Dogs in Home Protection, Plant Security, Police, & Military Work

William R. Koehler

Winged Bean Production in the Tropics (Fao Plant Production & Protection Paper)

T.N. Khan

Organic Plant Protection

Roger Yepsen

The Organic Way to Plant Protection

Roger B. Yepsen Jr.

Report of the Second Meeting of the Pacific Plant Protection Organisation: 2-5 March 1998, Nadi, Fiji (Report of meeting)

Pacific Plant Protection Organisation

Plant Variety Protection Office Official Journal, Vol. 27

1999 April 1-June 30

Plant Variety Protection Office Official Journal, Vol. 20

U S Plant Variety Protection Office

Plant Variety Protection Office Official Journal, Vol. 18: April-June, 1990 (Classic Reprint)

U S Plant Variety Protection Office

Plant Variety Protection Office Official Journal, Vol. 14: October-December 1986 (Classic Reprint)

U S Plant Variety Protection Office

Plant Variety Protection Office Official Journal, Vol. 27: April 1-June 30, 1999 (Classic Reprint)

U S Plant Variety Protection Office

Plant Variety Protection Office Official Journal, Vol. 18

U S Plant Variety Protection Office

Plant Variety Protection Office Official Journal, Vol. 10

U S Plant Variety Protection Office

Plant Variety Protection Office Official Journal, Vol. 18: April-June, 1990 (Classic Reprint)

U S Plant Variety Protection Office

Plant Variety Protection Office Official Journal, Vol. 9

U S Plant Variety Protection Office

Plant Variety Protection Office Official Journal, Vol. 20: April-June, 1992 (Classic Reprint)

U S Plant Variety Protection Office

Plant Variety Protection Office Official Journal, Vol. 27: July 1-September 30, 1999 (Classic Reprint)

U S Plant Variety Protection Office

Official Journal of the Plant Variety Protection Office, Vol. 3

U S Plant Variety Protection Office

Plant Variety Protection Office Official Journal, Vol. 19: Index; January-December, 1991 (Classic Reprint)

U S Plant Variety Protection Office

Plant Variety Protection Office Official Journal, Vol. 9: October-December, 1981 (Classic Reprint)

U S Plant Variety Protection Office

Plant Variety Protection Office Official Journal, Vol. 11: July-September, 1983 (Classic Reprint)

U S Plant Variety Protection Office