एपीए उद्धरण

Hird, D. (1906). Picture of evolution Pt.1 Astronomy,geology,Zoology,Pt.2 Comparative anatomy and embryology and the pedigree of man.

शिकागो स्टाइल उद्धरण

Hird, Dennis. Picture of Evolution Pt.1 Astronomy,geology,Zoology,Pt.2 Comparative Anatomy and Embryology and the Pedigree of Man. 1906.

एमएलए उद्धरण

Hird, Dennis. Picture of Evolution Pt.1 Astronomy,geology,Zoology,Pt.2 Comparative Anatomy and Embryology and the Pedigree of Man. 1906.