APA (7th ed.) Citation

Yarnell, S. H. (1942). Adaptability studies with bearded iris in Texas. Texas Agricultural Experiment Station.

Chicago Style (17th ed.) Citation

Yarnell, Sidney H. Adaptability Studies with Bearded Iris in Texas. College Station, Tex.: Texas Agricultural Experiment Station, 1942.

MLA (9th ed.) Citation

Yarnell, Sidney H. Adaptability Studies with Bearded Iris in Texas. Texas Agricultural Experiment Station, 1942.