APA (7th ed.) Citation

Copeman, G., Hanika, F. d. P., & Luijk, H. (1963). How the executive spends his time. Business Publications.

Chicago Style (17th ed.) Citation

Copeman, George, F. de P. Hanika, and H. Luijk. How the Executive Spends His Time. London: Business Publications, 1963.

MLA (8th ed.) Citation

Copeman, George, et al. How the Executive Spends His Time. Business Publications, 1963.

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