Gaya APA

Berkeley, B. (1970). The selection and maintenance of commercial carpet . Ithaca, New York: The Cornell Hotel & Restaurant Administration Querterly School of Hotel Administration, Cornell Univ.

Gaya MLA

Berkeley, Bernard. "The selection and maintenance of commercial carpet". Ithaca, New York: The Cornell Hotel & Restaurant Administration Querterly School of Hotel Administration, Cornell Univ, 1970. BUKU.