APA (7th ed.) Citation

Ritter, M. A., & Crispe, I. (1992). The thymus. IRL.

Chicago Style (17th ed.) Citation

Ritter, Mary A., and IN Crispe. The Thymus. Oxford: IRL, 1992.

MLA (9th ed.) Citation

Ritter, Mary A., and IN Crispe. The Thymus. IRL, 1992.

Warning: These citations may not always be 100% accurate.