APA-referens (7:e uppl.)

Johnson, D. M., Luke, Q., Goyder, D. J., & Murray, N. A. (2017). New species of Xylopia (Annonaceae) from East Africa. Kew Bulletin, 72(1), 1.

Chicago-referens (17:e uppl.)

Johnson, David M., Quentin Luke, David J. Goyder, och Nancy A. Murray. "New Species of Xylopia (Annonaceae) from East Africa." Kew Bulletin 72, no. 1 (2017): 1.

MLA-referens (9:e uppl.)

Johnson, David M., et al. "New Species of Xylopia (Annonaceae) from East Africa." Kew Bulletin, vol. 72, no. 1, 2017, p. 1.