Παραπομπή APA

Hummel, J. A. (1967). Introduction to vector functions. Addison-Wesley Pub. Co.

Παραπομπή Chicago Style

Hummel, James A. Introduction to Vector Functions. Reading, Mass.: Addison-Wesley Pub. Co, 1967.

Παραπομπή MLA

Hummel, James A. Introduction to Vector Functions. Addison-Wesley Pub. Co, 1967.