Knoop, D., & Jones, G. P. (1948). The genesis of Freemasonry: An account of the rise and development of Freemasonry in its operative, accepted, and early speculative phases. [Manchester, England]: Manchester University Press.

Knoop, Douglas, and Gwilym Peredur Jones. The Genesis of Freemasonry: An Account of the Rise and Development of Freemasonry in Its Operative, Accepted, and Early Speculative Phases. [Manchester, England]: Manchester University Press, 1948.

Knoop, Douglas, and Gwilym Peredur Jones. The Genesis of Freemasonry: An Account of the Rise and Development of Freemasonry in Its Operative, Accepted, and Early Speculative Phases. [Manchester, England]: Manchester University Press, 1948.