Gaya APA

LEVENS, A, S. (1962). GRAPHICS: WITH AN INTRODUCTION TO CONCEPTUAL DESIGN . New York: JOHN WILEY & SONS, New York.

Gaya MLA

LEVENS, A., S. "GRAPHICS: WITH AN INTRODUCTION TO CONCEPTUAL DESIGN". New York: JOHN WILEY & SONS, New York, 1962. Textbook.