Chacko, V. J. A manual on sampling techniques for forest surveys, by V. J. Chac ko. - Delhi, 1965. - xiv, 172 p. : ill ., maps. ; 25 cm. LCCN: sa 68-002991 Subjects--Topical Terms: Forests and forestry--Statistical methods.--IndiaSampling (Statistics) Dewey Class. No.: 634.9