Gaya APA

Goodman, J, O. (2017). The Book of Numbers: Images of the World's Ancient and Modern Numerals with Explanations . : CreateSpace Independent Publishing Platform.

Gaya MLA

Goodman, John, Oxenham. "The Book of Numbers: Images of the World's Ancient and Modern Numerals with Explanations". : CreateSpace Independent Publishing Platform, 2017. Text.