APA

Prance G. T., Balick M. J. & Institute of Economic Botany (New York Botanical Garden). (1990). New directions in the study of plants and people. Bronx, N.Y., U.S.A: New York Botanical Garden.

Chicago

Prance Ghillean T, Balick Michael J and Institute of Economic Botany (New York Botanical Garden). 1990. New directions in the study of plants and people. Bronx, N.Y., U.S.A: New York Botanical Garden.

Harvard

Prance G. T., Balick M. J. and Institute of Economic Botany (New York Botanical Garden). (1990). New directions in the study of plants and people. Bronx, N.Y., U.S.A: New York Botanical Garden.

MLA

Prance Ghillean T, Balick Michael J and Institute of Economic Botany (New York Botanical Garden). New directions in the study of plants and people. Bronx, N.Y., U.S.A: New York Botanical Garden. 1990.