APA aipamena

Ravenal, J. B., & Jacobson, T. (1998). Twenty Philadelphia artists: Celebrating Fleisher Challenge at twenty. Philadelphia Museum of Art.

Chicago Style aipamena

Ravenal, John B., and Thora Jacobson. Twenty Philadelphia Artists: Celebrating Fleisher Challenge at Twenty. Philadelphia, Pa.: Philadelphia Museum of Art, 1998.

MLA aipamena

Ravenal, John B., and Thora Jacobson. Twenty Philadelphia Artists: Celebrating Fleisher Challenge at Twenty. Philadelphia Museum of Art, 1998.