APA Edition Citation

Twidell, J. W., & Weir, A. D. (1987). Renewable energy resources.

Chicago Edition Citation

Twidell, John W., and Anthony D. Weir. Renewable Energy Resources. London : ELBS, 1987.

MLA Edition Citation

Twidell, John W., and Anthony D. Weir. Renewable Energy Resources. 1987.

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