APA (7th ed.) Citation

Koch, R., & Laut, L. (1972). Ex Libris Liesel Laut.

Chicago Style (17th ed.) Citation

Koch, Rudolf, and Liesel Laut. Ex Libris Liesel Laut. 1972.

MLA (9th ed.) Citation

Koch, Rudolf, and Liesel Laut. Ex Libris Liesel Laut. 1972.

Warning: These citations may not always be 100% accurate.