Παραπομπή APA

Gray, A. (2000). Tubes (2nd ed.). Birkhauser Boston.

Παραπομπή Chicago Style

Gray, Alfred. Tubes. 2nd ed. Boston: Birkhauser Boston, 2000.

Παραπομπή MLA

Gray, Alfred. Tubes. 2nd ed. Birkhauser Boston, 2000.