APA (7th ed.) Citation

Both, L. E. (1986). Self-efficacy and social interaction in the elderly. [publisher not identified].

Chicago Style (17th ed.) Citation

Both, Lilly Elisabeth. Self-efficacy and Social Interaction in the Elderly. [Place of publication not identified]: [publisher not identified], 1986.

MLA (9th ed.) Citation

Both, Lilly Elisabeth. Self-efficacy and Social Interaction in the Elderly. [publisher not identified], 1986.