APA (7th ed.) Citation

Powell, W. L. (1980). The Canadian energy directory =: Repertoire de l'information energetique au Canada. OLA.

Chicago Style (17th ed.) Citation

Powell, Wyley L. The Canadian Energy Directory =: Repertoire De L'information Energetique Au Canada. Toronto: OLA, 1980.

MLA (9th ed.) Citation

Powell, Wyley L. The Canadian Energy Directory =: Repertoire De L'information Energetique Au Canada. OLA, 1980.

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