Gaya APA

Ledford, J, K., Sanders, V. (2006). The Slit Lamp Primer (2nd Edition). United states of America: SLACK Incorporated.

Gaya MLA

Ledford, Janice, K.., Sanders, Valerie. "The Slit Lamp Primer". 2nd Edition United states of America: SLACK Incorporated, 2006. Text.