APA (7th ed.) Citation

United States. Department of Agriculture. Office of the Secretary, Metzger, F. W., & Van Leeuwen, E. R. (1930). Traps for Japanese beetle. U.S. GPO.

Chicago Style (17th ed.) Citation

United States. Department of Agriculture. Office of the Secretary, F. W. Metzger, and E. R. Van Leeuwen. Traps for Japanese Beetle. Washington: U.S. GPO, 1930.

MLA (9th ed.) Citation

United States. Department of Agriculture. Office of the Secretary, et al. Traps for Japanese Beetle. U.S. GPO, 1930.