Gaya APA
JR, R, W, M. (2011).
The Essence of Materials for Engineers (Edisi Pertama).
U.S.A:
Jones &Bartlett Learning.
Gaya MLA
JR, Robert, W., Messler,.
"The Essence of Materials for Engineers".
Edisi Pertama
U.S.A:
Jones &Bartlett Learning,
2011.
Text.