Não informado. (1927). Psychological abstracts. American Psychological Association.
Style de citation Chicago (17e éd.)Não informado. Psychological Abstracts. Lancaster, Pa: American Psychological Association, 1927.
Style de citation MLA (8e éd.)Não informado. Psychological Abstracts. American Psychological Association, 1927.
Attention : ces citations peuvent ne pas être correctes à 100%.