APA (7th ed.) Citation

Ferguson, B. K. (1978). Regional analysis of potential water power. Energy Sources, 4(2), 157.

Chicago Style (17th ed.) Citation

Ferguson, B. K. "Regional Analysis of Potential Water Power." Energy Sources 4, no. 2 (1978): 157.

MLA (9th ed.) Citation

Ferguson, B. K. "Regional Analysis of Potential Water Power." Energy Sources, vol. 4, no. 2, 1978, p. 157.