Cita APA (7a ed.)

Zamudio, S. (1988). Two new species of Pinguicula (Lentibulariaceae) from central and northern Mexico. Instituto de Ecología, A.C.

Cita Chicago Style (17a ed.)

Zamudio, Sergio. Two New Species of Pinguicula (Lentibulariaceae) from Central and Northern Mexico. Instituto de Ecología, A.C, 1988.

Cita MLA (9a ed.)

Zamudio, Sergio. Two New Species of Pinguicula (Lentibulariaceae) from Central and Northern Mexico. Instituto de Ecología, A.C, 1988.