- "Newton, his friend and his niece, by augustus de morgan"
- "Newton: his friend: and his niece"@en
- "Newton: his friend: and his niece"
- "Newton, his friend, and his niece"
- "Newton: his friend, and his niece"@en
- "Newton: his friend, and his niece"
- "Newton: his friend, and his niece. With an introd. by E.A. Osborne"@en
- "Newton, his friend and his niece"
- "Newton: his friend and his niece"
- "Newton, his friend : [Charles Montague, Earl of Halifax] and his niece [Catherine Barton]"
- "Newton : his friend and his niece"
- "Newton : his friend: and his niece"

- http://www.worldcat.org/oclc/67565059
- http://www.worldcat.org/oclc/222738155
- http://www.worldcat.org/oclc/461529455
- http://www.worldcat.org/oclc/4127402
- http://www.worldcat.org/oclc/14991
- http://www.worldcat.org/oclc/680082003
- http://www.worldcat.org/oclc/488862025
- http://www.worldcat.org/oclc/253837246
- http://www.worldcat.org/oclc/867961350
- http://www.worldcat.org/oclc/811117891
- http://www.worldcat.org/oclc/213820715
- http://www.worldcat.org/oclc/488852924
- http://www.worldcat.org/oclc/462155557
- http://www.worldcat.org/oclc/641450846
- http://www.worldcat.org/oclc/248705571
- http://www.worldcat.org/oclc/637145120