APA (7th ed.) Citation

Borgstrom, G. (1973). Food, feed and energy. [publisher not identified].

Chicago Style (17th ed.) Citation

Borgstrom, Georg. Food, Feed and Energy. [Place of publication not identified]: [publisher not identified], 1973.

MLA (9th ed.) Citation

Borgstrom, Georg. Food, Feed and Energy. [publisher not identified], 1973.