المؤلفون: Ingersoll, R. Sturgis, Marceau, Henri, Clifford, Henry, Gardiner, Henry G., Zigrosser, Carl, McIlhenny, Henry P., Lee, Jean Gordon, Graham, Frank P., Chandlee,, William H., Ingersoll, Paul M., Wolf, Howard A., Zieget, Julius, Machold, William F., Borie, Lysbeth Boyd, Sebring, Orvel

المصدر: Philadelphia Museum of Art Bulletin, 1963 Jul 01. 58(278), 249-292.

URL الوصول: https://www.jstor.org/stable/3795202

المؤلفون: Sebring, Orvel, Brudney, Victor, Rickershauser, Charles E.

المصدر: The Business Lawyer, 1976 Feb 01. 31, 1081-1090.

URL الوصول: https://www.jstor.org/stable/40685542

المؤلفون: Sebring, Orvel

المصدر: The Business Lawyer, 1968 Nov 01. 24(1), 1-5.

URL الوصول: https://www.jstor.org/stable/40684888

المؤلفون: Sebring, Orvel

المصدر: The Business Lawyer, 1969 Jan 01. 24(2), 337-339.

URL الوصول: https://www.jstor.org/stable/40684403

المؤلفون: Sebring, Orvel

المصدر: The Business Lawyer, 1969 Jul 01. 24(4), 1079-1083.

URL الوصول: https://www.jstor.org/stable/40684463

المؤلفون: SEBRING, ORVEL

المصدر: The Business Lawyer, 1969 Sep 01. 25, 3-4.

URL الوصول: https://www.jstor.org/stable/40684494

المؤلفون: SEBRING, ORVEL

المصدر: The Business Lawyer, 1967 Nov 01. 23(1), 95-113.

URL الوصول: https://www.jstor.org/stable/40684254

المؤلفون: Sebring, Orvel

المصدر: The Business Lawyer, 1964 Nov 01. 20(1), 238-240.

URL الوصول: https://www.jstor.org/stable/40683960

المؤلفون: SEBRING, ORVEL

المصدر: The Business Lawyer, 1963 Jan 01. 18(2), 429-440.

URL الوصول: https://www.jstor.org/stable/40683696

المؤلفون: SEBRING, ORVEL

المصدر: The Business Lawyer, 1962 Jul 01. 17(4), 844-858.

URL الوصول: https://www.jstor.org/stable/40683654