Stairs, steps and ramps

MLA

Blanc, A. Stairs, Steps and Ramps. Oxford: Butterworth-Heinemann, 1996.

APA

Blanc, A. (1996). Stairs, steps and ramps. Oxford: Butterworth-Heinemann.

Chicago

Blanc, A. Stairs, Steps and Ramps. Oxford: Butterworth-Heinemann, 1996.