APA Citation

(2007). Postal history from the archives of The Historical Society of Pennsylvania: Featuring 17th, 18th, and 19th Century covers. New York: Robert A. Siegel Auction Galleries, Inc.

Chicago Style Citation

Postal History From the Archives of The Historical Society of Pennsylvania: Featuring 17th, 18th, and 19th Century Covers. New York: Robert A. Siegel Auction Galleries, Inc, 2007.

MLA Citation

Postal History From the Archives of The Historical Society of Pennsylvania: Featuring 17th, 18th, and 19th Century Covers. New York: Robert A. Siegel Auction Galleries, Inc, 2007.

Warning: These citations may not always be 100% accurate.