Παραπομπή APA

Thomas, R. (1971). Exercises in Graphic Communication. ELBS & Nelson.

Παραπομπή Chicago Style

Thomas, R. Exercises in Graphic Communication. Middlesex: ELBS & Nelson, 1971.

Παραπομπή MLA

Thomas, R. Exercises in Graphic Communication. ELBS & Nelson, 1971.