Proceedings - St. Joseph, Mich. : American Society of Agicultural Engineers, (s.a.) - 112 p. : ilus. ; gráfs. - ASAE publication ; PROC-368 . - ASAE publication ; PROC-368 . LCCN: 41546 Subjects--Topical Terms: Ingeniería forestal. Dewey Class. No.: 634.93 / F6 1968