Two-Dimensional Calculus by Robert Osserman

Calculus by Robert A. Adams

Freshman Calculus by Robert A Bonic (Mathematician)

AN INTRODUCTION TO CALCULUS By Robert G. Bartle & C. Ionesco Tulcea, 1969 HC VG

Poetry Of The Universe: Mathematical... by Osserman, Robert Paperback / softback

Calculus of Several Variables by robert seeley

Calculus with Analytic Geometry by Robert P. Hostetler, Roland E. Larson and...

Calculus of One Variable by Robert Seeley