(1998). Beekeeping industry and technical bulletins. Library of Congress Office ; Library of Congress Photoduplication Service.
Chicago-viite (17. p.)Beekeeping Industry and Technical Bulletins. New Delhi : Washington, D.C.: Library of Congress Office ; Library of Congress Photoduplication Service, 1998.
MLA-viite (8. p.)Beekeeping Industry and Technical Bulletins. Library of Congress Office ; Library of Congress Photoduplication Service, 1998.
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