APA (7e ed.) Bronvermelding

Arriola, A. H., & Alejandro, G. J. D. (2015). Phylogeny of the Philippine coffeeae (Rubiaceae) inferred from multiple cpDNA and morphology. Transactions of the National Academy of Science and Technology.

Chicago (17e ed.) Bronvermelding

Arriola, Axel H., en Grecebio Jonathan D. Alejandro. "Phylogeny of the Philippine Coffeeae (Rubiaceae) Inferred from Multiple CpDNA and Morphology." Transactions of the National Academy of Science and Technology 2015.

MLA (9e ed.) Bronvermelding

Arriola, Axel H., en Grecebio Jonathan D. Alejandro. "Phylogeny of the Philippine Coffeeae (Rubiaceae) Inferred from Multiple CpDNA and Morphology." Transactions of the National Academy of Science and Technology, 2015.