Fishman, S. (2008). The public domain: How to find & use copyright-free writings, music, art & more (4th ed.). Nolo.
Chicago-Zitierstil (17. Ausg.)Fishman, Stephen. The Public Domain: How to Find & Use Copyright-free Writings, Music, Art & More. 4th ed. Berkeley, Calif: Nolo, 2008.
MLA-Zitierstil (9. Ausg.)Fishman, Stephen. The Public Domain: How to Find & Use Copyright-free Writings, Music, Art & More. 4th ed. Nolo, 2008.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.