MLA

Kaetzel, Charlotte S, and Charlotte Slayton Kaetzel. Mucosal Immune Defense: Immunoglobulin A. Springer US, 2007.

APA

Kaetzel, C. S, & Kaetzel, C. Slayton. (2007). Mucosal Immune Defense: Immunoglobulin A. Springer US.

Chicago

Kaetzel, Charlotte S., and Charlotte Slayton Kaetzel. Mucosal Immune Defense: Immunoglobulin A. : Springer US, 2007.