Cita APA (7a ed.)

Abba, A. M. (2015). High proportion of cactus species threatened with extinction.

Cita Chicago Style (17a ed.)

Abba, Agustín Manuel. High Proportion of Cactus Species Threatened with Extinction. 2015.

Cita MLA (8a ed.)

Abba, Agustín Manuel. High Proportion of Cactus Species Threatened with Extinction. 2015.