APA (7th ed.) Citation

Waddell, W. (1961). Structure of Laws as represented by symbolic methods. [publisher not identified].

Chicago Style (17th ed.) Citation

Waddell, Ward. Structure of Laws as Represented by Symbolic Methods. San Diego, Calif.: [publisher not identified], 1961.

MLA (9th ed.) Citation

Waddell, Ward. Structure of Laws as Represented by Symbolic Methods. [publisher not identified], 1961.