Cita APA (7th ed.)

DOERFFER, P., & SZWABA, R. (2008). FOREWORD. Gdańsk University of Technology.

Cita Chicago (17th ed.)

DOERFFER, PIOTR, i RYSZARD SZWABA. FOREWORD. Gdańsk University of Technology, 2008.

Cita MLA (9th ed.)

DOERFFER, PIOTR, i RYSZARD SZWABA. FOREWORD. Gdańsk University of Technology, 2008.