APA Citatie

Leiderman, R. (1990). The telephone book: How to find get,keep and develop customers. McGraw Hill.

Chicago Style citaat

Leiderman, Robert. The Telephone Book: How to Find Get,keep and Develop Customers. London: McGraw Hill, 1990.

MLA citatie

Leiderman, Robert. The Telephone Book: How to Find Get,keep and Develop Customers. McGraw Hill, 1990.

Let op: Deze citaties zijn niet altijd 100% accuraat.