Gates, A. I., & Peardon, M. C. (1944). Manual of directions, books III, IV, V and VI, types A, B, C, and D. Teachers College, Columbia University.
Chicago Style (17th ed.) CitationGates, Arthur Irving, and Mrs. Celeste Peardon. Manual of Directions, Books III, IV, V and VI, Types A, B, C, and D. New York City: Teachers College, Columbia University, 1944.
MLA (9th ed.) CitationGates, Arthur Irving, and Mrs. Celeste Peardon. Manual of Directions, Books III, IV, V and VI, Types A, B, C, and D. Teachers College, Columbia University, 1944.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.