APA (7th ed.) Citation

Tupper, G. R., Clark, L. E., Thompson, J. G. H., & Wilkes, L. H. (1969). Physical characteristics of cottonseed related to seedling vigor and design parameters for seed selection.

Chicago Style (17th ed.) Citation

Tupper, Gordon Richard, Lewis E. Clark, J. George H. Thompson, and Lambert H. Wilkes. Physical Characteristics of Cottonseed Related to Seedling Vigor and Design Parameters for Seed Selection. [College Station, Tex.], 1969.

MLA (9th ed.) Citation

Tupper, Gordon Richard, et al. Physical Characteristics of Cottonseed Related to Seedling Vigor and Design Parameters for Seed Selection. 1969.