Gaya APA

Ang, A, H, S, 1., Tang, W, H. (1975). Probability concepts in engineering planning and design (Vol.1.). New York: John Wiley & Sons,.

Gaya MLA

Ang, Alfredo, Hua, Sing,, 1930., Tang, Wilson, H. "Probability concepts in engineering planning and design". Vol.1. New York: John Wiley & Sons,, 1975. Text.