APA引文

N.P.C. (1959). N.P.C. information. National productivity council.

Chicago Edition Citation

N.P.C. N.P.C. Information. National productivity council, 1959.

MLA引文

N.P.C. N.P.C. Information. National productivity council, 1959.

警告：這些引文格式不一定是100％准確.