APA (7th ed.) Citation

Rygg, G. L., & Getty, M. R. (1955). Seasonal changes in Arizona and California grapefruit. U.S. Dept. of Agriculture.

Chicago Style (17th ed.) Citation

Rygg, G. L., and M. R. Getty. Seasonal Changes in Arizona and California Grapefruit. Washington: U.S. Dept. of Agriculture, 1955.

MLA (9th ed.) Citation

Rygg, G. L., and M. R. Getty. Seasonal Changes in Arizona and California Grapefruit. U.S. Dept. of Agriculture, 1955.