APA (7th ed.) Citation

Armstrong, D. F. (1980). Relationships between biological and mental development at adolescence. [publisher not identified].

Chicago Style (17th ed.) Citation

Armstrong, David Frederic. Relationships Between Biological and Mental Development at Adolescence. [Place of publication not identified]: [publisher not identified], 1980.

MLA (9th ed.) Citation

Armstrong, David Frederic. Relationships Between Biological and Mental Development at Adolescence. [publisher not identified], 1980.