Gaya APA

E.J.Yoder, ., Witczak, M. (1975). PRINCIPLES OF PAVEMENT DESIGN (2). CANADA: John Wiley & Sons, Ltd.

Gaya MLA

E.J.Yoder, ., Witczak, M.W.. "PRINCIPLES OF PAVEMENT DESIGN". 2 CANADA: John Wiley & Sons, Ltd, 1975. Text Book Sipil.