Cita APA

GRAVA, S. (2002). Urban transportation systems: Choices for communities. McGraw-Hill.

Citación estilo Chicago

GRAVA, Sigurd. Urban Transportation Systems: Choices for Communities. New York: McGraw-Hill, 2002.

Cita MLA

GRAVA, Sigurd. Urban Transportation Systems: Choices for Communities. McGraw-Hill, 2002.

Warning: These citations may not always be 100% accurate.