Cita APA (7a ed.)

Harvard University & Gray Herbarium of Harvard University. (1891). Contributions from the Gray Herbarium. Harvard University.

Cita Chicago Style (17a ed.)

Harvard University y Gray Herbarium of Harvard University. Contributions from the Gray Herbarium. Cambridge: Harvard University, 1891.

Cita MLA (8a ed.)

Harvard University y Gray Herbarium of Harvard University. Contributions from the Gray Herbarium. Harvard University, 1891.