Cita APA

Black, J. 1. -., & Black, J. 1. -. (1981). Urban transport planning theory and practice. Baltimore, Md.: J. Hopkins University Press.

Citación estilo Chicago

Black, John 1948 -, y John 1948 - Black. Urban Transport Planning Theory and Practice. Baltimore, Md.: J. Hopkins University Press, 1981.

Cita MLA

Black, John 1948 -, y John 1948 - Black. Urban Transport Planning Theory and Practice. Baltimore, Md.: J. Hopkins University Press, 1981.