APA (7th ed.) Citation

Speed, H. (1972). The practice & science of drawing / by Harold Speed (3rd ed.). Dover Publications.

Chicago Style (17th ed.) Citation

Speed, Harold. The Practice & Science of Drawing / by Harold Speed. 3rd ed. New York: Dover Publications, 1972.

MLA (9th ed.) Citation

Speed, Harold. The Practice & Science of Drawing / by Harold Speed. 3rd ed. Dover Publications, 1972.

Warning: These citations may not always be 100% accurate.