APA-čujuhus (7. p.)
Barr, S. M. (2006). A student's guide to natural science (First edition.). ISI Books.
Chicago-čujuhus (17. p.)
Barr, Stephen M. A Student's Guide to Natural Science. First edition. Wilmington, DE: ISI Books, 2006.
MLA-čujuhus (9. p.)
Barr, Stephen M. A Student's Guide to Natural Science. First edition. ISI Books, 2006.
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