APA (7th ed.) Citation

Newcomb, L. H., McCracken, J. D., & Warmbrod, J. R. (1986). Methods of teaching agriculture. Interstate Printers & Publishers.

Chicago Style (17th ed.) Citation

Newcomb, L. H., J. David McCracken, and J. Robert Warmbrod. Methods of Teaching Agriculture. Danville, Ill.: Interstate Printers & Publishers, 1986.

MLA (9th ed.) Citation

Newcomb, L. H., et al. Methods of Teaching Agriculture. Interstate Printers & Publishers, 1986.