Cita APA (7th ed.)

López-Ferrari, A. R., Espejo-Serna, A., & Ceja-Romero, J. (2009). Three new species of Commelina (Commelinaceae) from the central part of Mexico. Instituto de Ecología, A.C.

Cita Chicago (17th ed.)

López-Ferrari, Ana Rosa, Adolfo Espejo-Serna, i Jacqueline Ceja-Romero. Three New Species of Commelina (Commelinaceae) from the Central Part of Mexico. Instituto de Ecología, A.C, 2009.

Cita MLA (9th ed.)

López-Ferrari, Ana Rosa, et al. Three New Species of Commelina (Commelinaceae) from the Central Part of Mexico. Instituto de Ecología, A.C, 2009.