APA (7th ed.) Citation

Cunningham, R. E. (1970). Lambert & Thorpe 29/6/18. [publisher not identified].

Chicago Style (17th ed.) Citation

Cunningham, Robert E. Lambert & Thorpe 29/6/18. [Tex.?]: [publisher not identified], 1970.

MLA (9th ed.) Citation

Cunningham, Robert E. Lambert & Thorpe 29/6/18. [publisher not identified], 1970.