APA-čujuhus (7. p.)

ROHAN BOOK CO. (2001). THOMAS ALVA EDITION: WORLD GREAT SCIENTIST SERIES.

Chicago-čujuhus (17. p.)

ROHAN BOOK CO. THOMAS ALVA EDITION: WORLD GREAT SCIENTIST SERIES. 2001.

MLA-čujuhus (9. p.)

ROHAN BOOK CO. THOMAS ALVA EDITION: WORLD GREAT SCIENTIST SERIES. 2001.

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