Helmut Federle : American songline

MLA

Storr, Robert, et al. Helmut Federle : American Songline. Ostfildern: Hatje Cantz, .201.

APA

Storr, R., Masheck, J., Fetzer, F., & Yau, J. (.201). Helmut Federle : American songline. Ostfildern: Hatje Cantz.

Chicago

Storr, Robert, Joseph Masheck, Fanni Fetzer, and John Yau. Helmut Federle: American Songline. Ostfildern: Hatje Cantz, .201.