APA ציטוט

GINGERICH, O. Cosmology +1#Owen Gingerich. W.H.Freeman and Company.

Chicago Style (17th ed.) Citation

GINGERICH, Owen. Cosmology +1#Owen Gingerich. W.H.Freeman and Company.

ציטוט MLA

GINGERICH, Owen. Cosmology +1#Owen Gingerich. W.H.Freeman and Company.