Dyfyniad APA

John, K. (2002). Engineering graphics (8th ed.). Jet Publications.

Dyfyniad Arddull Chicago

John, K.C. Engineering Graphics. 8th ed. Thrissur: Jet Publications, 2002.

Dyfyniad MLA

John, K.C. Engineering Graphics. 8th ed. Jet Publications, 2002.

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