APA ציטוט

Coombs, R. C. (1993). Twins and Higher Multiple Births: A guide to their nature and nurture.

Citação norma Chicago

Coombs, R C. Twins and Higher Multiple Births: A Guide to Their Nature and Nurture. 1993.

ציטוט MLA

Coombs, R C. Twins and Higher Multiple Births: A Guide to Their Nature and Nurture. 1993.