Цитирование APA (7-е изд.)

Sewell Carl. (1990). Customers for Life: How to turn that one-time buyer into a lifetime customer. Pocket Books Publishing.

Цитирование в стиле Чикаго (17-е изд.)

Sewell Carl. Customers for Life: How to Turn That One-time Buyer into a Lifetime Customer. NewYok: Pocket Books Publishing, 1990.

Цитирование MLA (9-е изд.)

Sewell Carl. Customers for Life: How to Turn That One-time Buyer into a Lifetime Customer. Pocket Books Publishing, 1990.

Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.