Heacock, F. A. (1952). Graphic methods for solving problems. [publisher not identified].
Chicago Style (17th ed.) CitationHeacock, Frank A. Graphic Methods for Solving Problems. [Princeton? N. J.]: [publisher not identified], 1952.
MLA (9th ed.) CitationHeacock, Frank A. Graphic Methods for Solving Problems. [publisher not identified], 1952.
Warning: These citations may not always be 100% accurate.