APA (7th ed.) Citation

(1999). Donald Frederick and Mildred Topp Othmer: A commemorative of their lives and legacies. Chemical Heritage Foundation.

Chicago Style (17th ed.) Citation

Donald Frederick and Mildred Topp Othmer: A Commemorative of Their Lives and Legacies. Philadelphia: Chemical Heritage Foundation, 1999.

MLA (9th ed.) Citation

Donald Frederick and Mildred Topp Othmer: A Commemorative of Their Lives and Legacies. Chemical Heritage Foundation, 1999.

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