APA

(1993). The Naranjilla (solanum quitoense), the cocona (Solanum sessiliflorum) and their hybrid. New York: Plenum Press.

Chicago

1993. The Naranjilla (solanum quitoense), the cocona (Solanum sessiliflorum) and their hybrid. New York: Plenum Press.

Harvard

(1993). The Naranjilla (solanum quitoense), the cocona (Solanum sessiliflorum) and their hybrid. New York: Plenum Press.

MLA

The Naranjilla (solanum quitoense), the cocona (Solanum sessiliflorum) and their hybrid. New York: Plenum Press. 1993.