Variational Calculus With Elementary Convexity, Paperback by Hrusa, W. (CON);...

CALCULUS I with Integrated Precalculus by LAURA TAALMAN Textbook Paperback

Variational Calculus With Elementary Convexity (Undergraduate Texts in...

Calculus of Variations by S. V. Fomin and I. M. Gelfand (2000, Trade Paperback)

Variational Calculus With Elementary - Hardcover, by Troutman John - Very Good

Variational Calculus and Optimal Control: Optimization with Elementary Convexity

Hrusa - Variational Calculus with Elementary Convexity - New paperback - X555z

Lectures on the Calculus of Variations by Hancock Harris (2009, Paperback)