Jha, Lalit Kumar A Manual of forestry extension education / Lalit Kumar Jha; P K Sen-Sarma - New delhi : Aph publication, 1997 - 286 p. : ill. ; 23 cm. ISBN: 817024742X Subjects--Topical Terms: Forestry extension -- India. Dewey Class. No.: 634.907154 / JHM 1997