Gaya APA

Grivviths, J, A, H. (1969). The School Matemathics Project: A Companion to Advanced Mathematics.1 . New York: Cambridge University Press.

Gaya MLA

Grivviths, JV, Armitage, HB. "The School Matemathics Project: A Companion to Advanced Mathematics.1". New York: Cambridge University Press, 1969. .