APA (7th ed.) Citation

Edwardson, J. R. (1949). A cytoplasmic male-sterile factor in corn. [publisher not identified].

Chicago Style (17th ed.) Citation

Edwardson, John Richardson. A Cytoplasmic Male-sterile Factor in Corn. [College Station, Tex.]: [publisher not identified], 1949.

MLA (9th ed.) Citation

Edwardson, John Richardson. A Cytoplasmic Male-sterile Factor in Corn. [publisher not identified], 1949.