R R Bowker Publishing

Books in Print, 1990-91, 3

1990

Ulrich's International Periodicals Directory 1994-95, 1

1994

Ulrich's International Periodicals Directory: A Classified Guide to Current Periodicals, Foreign and Domestic (Ulrich's International Periodicals Directory (Separate Vols))

1996

Publishers, Distributors & Wholesalers of the U. S. 1994-95, 1

1994

Ulrich's International Periodicals Directory, 1990-91, 2

1990