Hackenbroch, Y. (1971). Chelsea porcelain: Some recent additions to the Irwin Untermyer collection.
Chicago Style (17th ed.) CitationHackenbroch, Yvonne. Chelsea Porcelain: Some Recent Additions to the Irwin Untermyer Collection. 1971.
MLA (9th ed.) CitationHackenbroch, Yvonne. Chelsea Porcelain: Some Recent Additions to the Irwin Untermyer Collection. 1971.
Warning: These citations may not always be 100% accurate.