APA-Zitierstil (7. Ausg.)

(1987). Important paperweights: Including property from the collection of the late Mr. Ralph S. Johns, a Baltimore collector and various owners ; auction Thursday, June 25, 1987, Sotheby's New York 5590 "OVERLAY" ; [169 Nummern]. Sotheby's.

Chicago-Zitierstil (17. Ausg.)

Important Paperweights: Including Property from the Collection of the Late Mr. Ralph S. Johns, a Baltimore Collector and Various Owners ; Auction Thursday, June 25, 1987, Sotheby's New York 5590 "OVERLAY" ; [169 Nummern]. New York, NY: Sotheby's, 1987.

MLA-Zitierstil (9. Ausg.)

Important Paperweights: Including Property from the Collection of the Late Mr. Ralph S. Johns, a Baltimore Collector and Various Owners ; Auction Thursday, June 25, 1987, Sotheby's New York 5590 "OVERLAY" ; [169 Nummern]. Sotheby's, 1987.

Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.