APA (7th ed.) Citation

Schwager, J. D., & Jania, M. Zasady konstruowania portfela.

Chicago Style (17th ed.) Citation

Schwager, Jack D.., and Magdalena Jania. Zasady Konstruowania Portfela.

MLA (9th ed.) Citation

Schwager, Jack D.., and Magdalena Jania. Zasady Konstruowania Portfela.

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