Dyfyniad APA
Rangwala, S. C., Rangwala K.S, & Rangwala P.S. Principles of railway engineering (14th Rev. ed.). Charotar Book Stall.
Dyfyniad Arddull Chicago
Rangwala, S. C., Rangwala K.S, and Rangwala P.S. Principles of Railway Engineering. 14th Rev. ed. Anand, India: Charotar Book Stall.
Dyfyniad MLA
Rangwala, S. C., et al. Principles of Railway Engineering. 14th Rev. ed. Charotar Book Stall.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.