Chemistry Tree – Paul Emmett. [w:] Chemistry Tree [on-line]. The Academic Genealogy of Chemistry Researchers. [dostęp 2017-11-12]. (ang.).
Paul Hugh Emmett – Publications. [w:] Chemistry Tree – The Academic Genealogy of Chemistry Researchers ; Johns Hopkins University [on-line]. [dostęp 2017-11-12].
Timeline for Paul Emmett. [w:] Special Collections & Archives Research Center ; Paul Emmett Papers, 1918–2001 [on-line]. Oregon State University Libraries. [dostęp 2017-11-11]. (ang.).