Cita APA (7th ed.)

Gual Diaz, M., Peralta Gomez, S., & Perez-Calix, E. (1997). A new species of Thompsonella (Crassulaceae) from the state of Guerrero, Mexico. Instituto de Ecología, A.C.

Cita Chicago (17th ed.)

Gual Diaz, Martha, Susana Peralta Gomez, i Emmanuel Perez-Calix. A New Species of Thompsonella (Crassulaceae) from the State of Guerrero, Mexico. Instituto de Ecología, A.C, 1997.

Cita MLA (9th ed.)

Gual Diaz, Martha, et al. A New Species of Thompsonella (Crassulaceae) from the State of Guerrero, Mexico. Instituto de Ecología, A.C, 1997.