Birnbaum, S. (1990). Birnbaum's Italy 1991: America's favorite travel guides. Houghton Mifflin.
Chicago Style (17th ed.) CitationBirnbaum, Stephen. Birnbaum's Italy 1991: America's Favorite Travel Guides. Boston: Houghton Mifflin, 1990.
MLA (9th ed.) CitationBirnbaum, Stephen. Birnbaum's Italy 1991: America's Favorite Travel Guides. Houghton Mifflin, 1990.
Warning: These citations may not always be 100% accurate.