Webber, B. (1986). The Oregon Trail Memorial Half-Dollar (1926-1939). Webb Research Group : Distributed by Pacific Northwest Books.
Цитирование в стиле Чикаго (17-е изд.)Webber, Bert. The Oregon Trail Memorial Half-Dollar (1926-1939). Medford, OR: Webb Research Group : Distributed by Pacific Northwest Books, 1986.
Цитирование MLA (8-е изд.)Webber, Bert. The Oregon Trail Memorial Half-Dollar (1926-1939). Webb Research Group : Distributed by Pacific Northwest Books, 1986.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.