edited by Howard S. Rowland & Beatrice L. Rowland

Aspen 1997 4th ed

所蔵館17館

edited by Howard S. Rowland and Beatrice L. Rowland

Aspen Publishers 1992 3rd ed

所蔵館7館

Kenneth E. Lawrence, Howard S. Rowland, editors

Aspen Systems Corp. 1982

所蔵館2館

[compiled by] the Center for Compliance Information ; editors, Alexander McRae, Leslie Whelchel, consulting editor, Howard Rowland

Aspen Systems Corp. 1978

所蔵館1館

Howard S. Rowland, Richard L. Wing

Macmillan c1967

所蔵館4館