Kuhn, K. F., & Koupelis, T. (2004). In quest of the universe (4th edition.). Jones and Bartlett Publishers.
Chicago Style (17. basım) AtıfKuhn, Karl F., ve Theo Koupelis. In Quest of the Universe. 4th edition. Sadbury, Mass: Jones and Bartlett Publishers, 2004.
MLA (9th ed.) AtıfKuhn, Karl F., ve Theo Koupelis. In Quest of the Universe. 4th edition. Jones and Bartlett Publishers, 2004.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..