APA

Gentry A. H., . (1996). A field guide to the families and genera of woody plants of northwest South America (Colombia, Ecuador, Peru) with supplementary notes on herbaceous taxa. Chicago: University of Chicago.

Chicago

Gentry Alwyn H, . 1996. A field guide to the families and genera of woody plants of northwest South America (Colombia, Ecuador, Peru) with supplementary notes on herbaceous taxa. Chicago: University of Chicago.

Harvard

Gentry A. H., . (1996). A field guide to the families and genera of woody plants of northwest South America (Colombia, Ecuador, Peru) with supplementary notes on herbaceous taxa. Chicago: University of Chicago.

MLA

Gentry Alwyn H, . A field guide to the families and genera of woody plants of northwest South America (Colombia, Ecuador, Peru) with supplementary notes on herbaceous taxa. Chicago: University of Chicago. 1996.