Citazione Stile APA (7a Edizione)

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.

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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