Gaya APA

M, C. (1991). The Essence Of :Markrting Research (Ed. Ke-1). Englewood Cliffs, NJ: Prentice Hall.

Gaya MLA

M, Chisnall,Peter. "The Essence Of :Markrting Research". Ed. Ke-1 Englewood Cliffs, NJ: Prentice Hall, 1991. Text.