APA-referens (7:e uppl.)

GOPE, P. (2012). MACHINE DESIGN. PHI.

Chicago-referens (17:e uppl.)

GOPE, P.C. MACHINE DESIGN. N.DELHI: PHI, 2012.

MLA-referens (9:e uppl.)

GOPE, P.C. MACHINE DESIGN. PHI, 2012.