Cita APA

Smith, L. B. 1., & Downs, R. J. 1. (1974). Pitcairnioideae (Bromeliaceae). New York: Organization for Flora Neotropica by Hafner Press.

Citación estilo Chicago

Smith, Lyman Bradford 1904-1997, y Robert Jack 1923- Downs. Pitcairnioideae (Bromeliaceae). New York: Organization for Flora Neotropica by Hafner Press, 1974.

Cita MLA

Smith, Lyman Bradford 1904-1997, y Robert Jack 1923- Downs. Pitcairnioideae (Bromeliaceae). New York: Organization for Flora Neotropica by Hafner Press, 1974.