National Geographic (164, no. 2, August 1983)

Numéro d'article 10161570

August 1983 issue featuring Sri Lanka's remarkable wildlife and efforts to protect its elephants; the character and economy of Delaware; Hawaii's unusual predatory caterpillars; ceremonial and theatrical traditions in the highlands of New Guinea; the growing sport of ultralight aviation; and the people, landscapes, and environmental challenges of the Mississippi Delta.