APA Style

LANGEN, M, D., TEMBELE, R. (2001). Productive and Liveable Cities : guidelines for pedestrian and bicycle traffic in African Cities (1). Amsterdam: A.A. Balkema.

MLA Style

LANGEN, MARIUS, DE., TEMBELE, RUSTICA. "Productive and Liveable Cities : guidelines for pedestrian and bicycle traffic in African Cities". 1 Amsterdam: A.A. Balkema, 2001. Text.