(crybwyll am y tro cyntaf)
Martha C. Howell a Walter Prevenier, From Reliable Sources: An Introduction to Historical Methods (Llundain: Gwasg Prifysgol Cornell, 2001), tt. 21-22.
NEU
John H. Taylor, Daniel Antoine a Marie Vandenbeusch, Ancient Lives: New Discoveries (Llundain: Yr Amgueddfa Brydeinig, 2014), t. 5.
(crybwyll yn ddiweddarach)
Howell a Prevenier, t. 39.
NEU
Taylor, Antoine a Vandenbeusch, t.7-8.
Martha C. Howell a Walter Prevenier, From Reliable Sources: An Introduction to Historical Methods (Llundain: Gwasg Prifysgol Cornell, 2001), tt. 21-22. E-lyfr Ebook Central.
NEU
John H. Taylor, Daniel Antoine a Marie Vandenbeusch, Ancient Lives: New Discoveries (Llundain: Yr Amgueddfa Brydeinig, 2014), t. 5. E-lyfr Ebook Central.
Howell, Martha C. a Walter Prevenier, From Reliable Sources: An Introduction to Historical Methods (Llundain: Gwasg Prifysgol Cornell, 2001)
NEU
Taylor, John H., Daniel Antoine a Marie Vandenbeusch, Ancient Lives: New Discoveries (Llundain: Yr Amgueddfa Brydeinig, 2014)
Howell, Martha C. a Walter Prevenier, From Reliable Sources: An Introduction to Historical Methods (Llundain: Gwasg Prifysgol Cornell, 2001). E-lyfr Ebook Central
NEU
Taylor, John H., Daniel Antoine a Marie Vandenbeusch, Ancient Lives: New Discoveries (Llundain: Yr Amgueddfa Brydeinig, 2014). E-lyfr Ebook Central