Template:Leng, 1920

• Leng, C.W. 1920. Catalogue of the Coleoptera of America, North of Mexico. John D. Sherman, Jr., Mount Vernon, New York, x + 470 pp. BHL  
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See also

• Leng, C.W. & Mutchler, A.J. 1927. Supplement 1919 to 1924 (inclusive) to catalogue of the Coleoptera of America, north of Mexico. John D. Sherman Jr., Mount Vernon (N.Y.). 78 pp. BHL Reference page. 
• Leng, C.W. & Mutchler, A.J. 1933. Second and Third Supplements 1925 to 1932 (inclusive) to catalogue of the Coleoptera of America, north of Mexico. John D. Sherman Jr., Mount Vernon (N.Y.). 112 pp. BHL Reference page. 
• Blackwelder, R.E. 1939. Fourth Supplement 1933 to 1938 (inclusive) to the Leng catalogue of Coleoptera of America, north of Mexico. John D. Sherman Jr., Mount Vernon (N.Y.). 146 pp. BHL Reference page. 
• Blackwelder, R.E. & Blackwelder, R.M. 1948. Fifth Supplement 1939 to 1947 (inclusive) to the Leng catalogue of Coleoptera of America, north of Mexico. John D. Sherman Jr., Mount Vernon (N.Y.). 146 pp. BHL Reference page.