एपीए उद्धरण

Lowenstein, M. W. (1998). Customer Retention. Deep And Deep.

शिकागो स्टाइल उद्धरण

Lowenstein, Michael. W. Customer Retention. Delhi: Deep And Deep, 1998.

एमएलए उद्धरण

Lowenstein, Michael. W. Customer Retention. Deep And Deep, 1998.