APA (7th ed.) Citation

Gawęcki, W., & Leszner, T. (1947). Ex-librisy lekarzy. [s.n.].

Chicago Style (17th ed.) Citation

Gawęcki, Witold, and Tadeusz Leszner. Ex-librisy Lekarzy. Poznań: [s.n.], 1947.

MLA (9th ed.) Citation

Gawęcki, Witold, and Tadeusz Leszner. Ex-librisy Lekarzy. [s.n.], 1947.