APA (7th ed.) Citation

Holzapfel, H. (1986). Trip relationships in urban areas. Gower.

Chicago Style (17th ed.) Citation

Holzapfel, Helmut. Trip Relationships in Urban Areas. Aldershot, Hants [England] ; Brookfield, Vt., USA: Gower, 1986.

MLA (9th ed.) Citation

Holzapfel, Helmut. Trip Relationships in Urban Areas. Gower, 1986.