DURR, W. K. (1982). Boats. Houghton Mifflin.
Chicago-čujuhus (17. p.)DURR, William K. Boats. Boston: Houghton Mifflin, 1982.
MLA-čujuhus (9. p.)DURR, William K. Boats. Houghton Mifflin, 1982.
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