APA (7th ed.) Citation

(1968). Leadership series part I & 2 /. HBR.

Chicago Style (17th ed.) Citation

Leadership Series Part I & 2 /. Boston: HBR, 1968.

MLA (8th ed.) Citation

Leadership Series Part I & 2 /. HBR, 1968.

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