APA-viite

John , K., & Varghese, P. (1996). Machine drawing (4th ed.). V.I.P. Publishers.

Chicago-tyylinen lähdeviittaus

John , K.C, ja P.I Varghese. Machine Drawing. 4th ed. Thrissur: V.I.P. Publishers, 1996.

MLA-viite

John , K.C, ja P.I Varghese. Machine Drawing. 4th ed. V.I.P. Publishers, 1996.