APA (7th ed.) Citation

Walker, E. H., & Rodin, R. J. (1949). Additional phanerogams in the flora of Guam, with notes on unverified records. U.S. Govt. Print. Off.

Chicago Style (17th ed.) Citation

Walker, Egbert H., and Robert J. Rodin. Additional Phanerogams in the Flora of Guam, with Notes on Unverified Records. Washington: U.S. Govt. Print. Off, 1949.

MLA (8th ed.) Citation

Walker, Egbert H., and Robert J. Rodin. Additional Phanerogams in the Flora of Guam, with Notes on Unverified Records. U.S. Govt. Print. Off, 1949.