Cita APA (7a ed.)

Holmgren, P. K., Holmgren, N. H., & Barnett, L. C. (1990). Index Herbariorum. Part I: The Herbaria of the world. (8.ed.). International Association for Plant Taxonomy by New York Botanical Garden.

Cita Chicago Style (17a ed.)

Holmgren, Patricia K., Noel H.ed Holmgren, y Lisa C.ed Barnett. Index Herbariorum. Part I: The Herbaria of the World. 8.ed. New York: International Association for Plant Taxonomy by New York Botanical Garden, 1990.

Cita MLA (8a ed.)

Holmgren, Patricia K., et al. Index Herbariorum. Part I: The Herbaria of the World. 8.ed. International Association for Plant Taxonomy by New York Botanical Garden, 1990.