APA引文

(1931). Power sources in poland and their utilization: Published by the Polish National Committee of the World Power Conference. Warszawa, 1931.

Chicago Style (17th ed.) Citation

Power Sources in Poland and Their Utilization: Published by the Polish National Committee of the World Power Conference. Warszawa, 1931, 1931.

MLA引文

Power Sources in Poland and Their Utilization: Published by the Polish National Committee of the World Power Conference. Warszawa, 1931, 1931.

警告：這些引文格式不一定是100％准確.