Style de citation APA

Sommer, J. G. (1980). U.S. private voluntary organizations assisting third world development. Development digest, 8(4), 47.

Style de citation Chicago

Sommer, J G. "U.S. Private Voluntary Organizations Assisting Third World Development." Development Digest 8, no. 4 (1980): 47.

Style de citation MLA

Sommer, J G. "U.S. Private Voluntary Organizations Assisting Third World Development." Development Digest, vol. 8, no. 4, 1980, p. 47.