APA (7th ed.) Citation

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 (17th ed.) Citation

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 (9th ed.) Citation

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