APA引文

Walton, W. R. (1920). European corn borer in american corn. U.S. Department of Agriculture.

Chicago Style (17th ed.) Citation

Walton, William Randolph. European Corn Borer in American Corn. Washington: U.S. Department of Agriculture, 1920.

MLA引文

Walton, William Randolph. European Corn Borer in American Corn. U.S. Department of Agriculture, 1920.