APA (7th ed.) Citation

Crystal, D. G. (1975). Comparison of two practice methods of teaching manipulative skills to secondary students. Crystal.

Chicago Style (17th ed.) Citation

Crystal, Delbert Glen. Comparison of Two Practice Methods of Teaching Manipulative Skills to Secondary Students. Logan, Utah: Crystal, 1975.

MLA (9th ed.) Citation

Crystal, Delbert Glen. Comparison of Two Practice Methods of Teaching Manipulative Skills to Secondary Students. Crystal, 1975.