APA (7th ed.) Citation

Beckett, R. E., & Stitt, R. S. (1935). The desert milkweed (Asclepias subulata) as a possible source of rubber. U.S. Dept. of Agriculture.

Chicago Style (17th ed.) Citation

Beckett, R. E., and R. S. Stitt. The Desert Milkweed (Asclepias Subulata) as a Possible Source of Rubber. Washington: U.S. Dept. of Agriculture, 1935.

MLA (9th ed.) Citation

Beckett, R. E., and R. S. Stitt. The Desert Milkweed (Asclepias Subulata) as a Possible Source of Rubber. U.S. Dept. of Agriculture, 1935.