APA (7th ed.) Citation

Krumboltz, J. D. (1963). Needed Research in Programed Instruction. Educational Leadership, 21(1), 30.

Chicago Style (17th ed.) Citation

Krumboltz, John D. "Needed Research in Programed Instruction." Educational Leadership 21, no. 1 (1963): 30.

MLA (9th ed.) Citation

Krumboltz, John D. "Needed Research in Programed Instruction." Educational Leadership, vol. 21, no. 1, 1963, p. 30.

Warning: These citations may not always be 100% accurate.