APA (7th ed.) Citation

Janeczek, Z., & Testka, E. (1974). Ex Libris Edward Testka.

Chicago Style (17th ed.) Citation

Janeczek, Zbigniew, and Edward Testka. Ex Libris Edward Testka. 1974.

MLA (9th ed.) Citation

Janeczek, Zbigniew, and Edward Testka. Ex Libris Edward Testka. 1974.

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