Guidelines for yield assessment of opium gum and coca leaf
Subtitle: from brief field visits
By: [United Nations Office for Drug Control and Crime Prevention]
Contributors: United Nations International Drug Control Programme. Scientific Section; United Nations International Drug Control Programme. Illicit Crop Monitoring Programme
Publisher: United Nations
Published: 2001
Place of publication: New York
Language: eng
Number of pages: 55
Subjects: Opium poppy -- Harvesting; Opium poppy -- Growth; Coca -- Harvesting; Coca -- Growth
Notes: "United Nations International Drug Control Programme, Vienna ; Scientific Section and Illicit Crop Monitoring Programme."

"ST/NAR/33."--p. 4 of title page

Includes bibliographical references (p. 43)