APA引文

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

Chicago Style (17th ed.) Citation

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

MLA引文

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

警告：這些引文格式不一定是100％准確.