APA (7th ed.) Citation

Dolatowski, Z., & Nielsen, J. D. (1961). Ex Libris Joh. Due-Nielsen.

Chicago Style (17th ed.) Citation

Dolatowski, Zbigniew, and Johan Due Nielsen. Ex Libris Joh. Due-Nielsen. [S. l, 1961.

MLA (9th ed.) Citation

Dolatowski, Zbigniew, and Johan Due Nielsen. Ex Libris Joh. Due-Nielsen. 1961.

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