APA (7th ed.) Citation

Harder, P. O. (1968). Harmonic Materials in Tonal Music part II. Allyn and Bacon.

Chicago Style (17th ed.) Citation

Harder, Paul O. Harmonic Materials in Tonal Music Part II. Allyn and Bacon, 1968.

MLA (8th ed.) Citation

Harder, Paul O. Harmonic Materials in Tonal Music Part II. Allyn and Bacon, 1968.

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