John Withington: Secrets of the Centenarians: What is it Like to Live for a Century and Which of Us Will Survive to Find Out? Reaktion Books, 2017, ISBN 978-1-78023-883-8 (google.com [abgerufen am 11. September 2023]).
John Withington: Secrets of the Centenarians: What is it Like to Live for a Century and Which of Us Will Survive to Find Out? Reaktion Books, 2017, ISBN 978-1-78023-883-8 (google.com [abgerufen am 11. September 2023]).
John Withington: Secrets of the Centenarians: What is it Like to Live for a Century and Which of Us Will Survive to Find Out? Reaktion Books, 2017, ISBN 978-1-78023-883-8 (google.com [abgerufen am 11. September 2023]).
John Withington: Secrets of the Centenarians: What is it Like to Live for a Century and Which of Us Will Survive to Find Out? Reaktion Books, 2017, ISBN 978-1-78023-883-8 (google.com [abgerufen am 11. September 2023]).
John Withington: Secrets of the Centenarians: What is it Like to Live for a Century and Which of Us Will Survive to Find Out? Reaktion Books, 2017, ISBN 978-1-78023-883-8 (google.com [abgerufen am 11. September 2023]).
John Withington: Secrets of the Centenarians: What is it Like to Live for a Century and Which of Us Will Survive to Find Out? Reaktion Books, 2017, ISBN 978-1-78023-883-8 (google.com [abgerufen am 11. September 2023]).
Peter Fimrite, Chronicle North Bay Bureau: 114 and Still Smoking / San Rafael man likely to be world's oldest. In: SFGATE. (sfgate.com [abgerufen am 25. Mai 2024]).