APA (7th ed.) Citation

Schaefer, E. S., & Manheimer, H. (1960). Pregnancy research questionnaire and postnatal research inventory. [publisher not identified].

Chicago Style (17th ed.) Citation

Schaefer, Earl S., and Helen Manheimer. Pregnancy Research Questionnaire and Postnatal Research Inventory. [Place of publication not identified]: [publisher not identified], 1960.

MLA (8th ed.) Citation

Schaefer, Earl S., and Helen Manheimer. Pregnancy Research Questionnaire and Postnatal Research Inventory. [publisher not identified], 1960.

Warning: These citations may not always be 100% accurate.