APA aipamena

Saar, D. E., Sørensen, P. D., & Hjerting, J. P. (2003). Dahlia campanulata and D. cuspidata (Asteraceae, Coreopsideae): Two new species from Mexico. Instituto de Ecología, A.C.

Chicago Style aipamena

Saar, Dayle E., Paul D. Sørensen, and J. P. Hjerting. Dahlia Campanulata and D. Cuspidata (Asteraceae, Coreopsideae): Two New Species from Mexico. Instituto de Ecología, A.C, 2003.

MLA aipamena

Saar, Dayle E., et al. Dahlia Campanulata and D. Cuspidata (Asteraceae, Coreopsideae): Two New Species from Mexico. Instituto de Ecología, A.C, 2003.