APA-čujuhus (7. p.)
Crowhurst, N. H. (1961). Basic mathematics (1a. ed.). John F. Rider Pushing INC..
Chicago-čujuhus (17. p.)
Crowhurst, Norman H. Basic Mathematics. 1a. ed. Nueva York: John F. Rider Pushing INC., 1961.
MLA-čujuhus (9. p.)
Crowhurst, Norman H. Basic Mathematics. 1a. ed. John F. Rider Pushing INC., 1961.
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