Roffman, H. (2001). Best of Johan Paulik: Howard Roffman. Gmünder.
Cita Chicago (17th ed.)Roffman, Howard. Best of Johan Paulik: Howard Roffman. Berlin: Gmünder, 2001.
Cita MLA (8th ed.)Roffman, Howard. Best of Johan Paulik: Howard Roffman. Gmünder, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.