Beryl Brintnall Simpson, M. C. O. Economic botany plants in our world. McGraw Hill.
Chicago Style (17th ed.) CitationBeryl Brintnall Simpson, Molly Conner Ogorzaly. Economic Botany Plants in Our World. McGraw Hill.
MLA (8th ed.) CitationBeryl Brintnall Simpson, Molly Conner Ogorzaly. Economic Botany Plants in Our World. McGraw Hill.
Warning: These citations may not always be 100% accurate.