Não informado. (1978). Biological sciences curriculum study journal. Biological Sciences Curriculum Study.
Chicago-referens (17:e uppl.)Não informado. Biological Sciences Curriculum Study Journal. Boulder, Colo: Biological Sciences Curriculum Study, 1978.
MLA-referens (8:e uppl.)Não informado. Biological Sciences Curriculum Study Journal. Biological Sciences Curriculum Study, 1978.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.