APA (7th ed.) Citation

Hippel, E. V. (1988). Sources of innovation. Oxford University Press.

Chicago Style (17th ed.) Citation

Hippel, Eric Von. Sources of Innovation. Oxford University Press, 1988.

MLA (9th ed.) Citation

Hippel, Eric Von. Sources of Innovation. Oxford University Press, 1988.

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