APA-čujuhus (7. p.)
Burroughs, E. R. (1963). Back to the Stone Age. Ace Books.
Chicago-čujuhus (17. p.)
Burroughs, Edgar Rice. Back to the Stone Age. Nueva York, EUA: Ace Books, 1963.
MLA-čujuhus (9. p.)
Burroughs, Edgar Rice. Back to the Stone Age. Ace Books, 1963.
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