Παραπομπή APA

Bernier, C. L., & Borko, H. (1975). Abstracting concepts and methods.

Παραπομπή Chicago Style

Bernier, Charles L., και Harold Borko. Abstracting Concepts and Methods. NY, Academic, 1975.

Παραπομπή MLA

Bernier, Charles L., και Harold Borko. Abstracting Concepts and Methods. 1975.