Cita APA

Rollins, R. C. 1., & Foster, R. C. 1. (1970). Contributions from the Gray Herbarium of Harvard University. Cambridge, Mass., U.S.A.: The Gray Herbarium of Harvard University.

Citación estilo Chicago

Rollins, Reed Clark 1911-1998, y Robert Crichton 1904-1986 Foster. Contributions From the Gray Herbarium of Harvard University. Cambridge, Mass., U.S.A.: The Gray Herbarium of Harvard University, 1970.

Cita MLA

Rollins, Reed Clark 1911-1998, y Robert Crichton 1904-1986 Foster. Contributions From the Gray Herbarium of Harvard University. Cambridge, Mass., U.S.A.: The Gray Herbarium of Harvard University, 1970.

Precaución: Estas citas no son 100% exactas.