The book of squares /
Leonardo Pisano Fibonacci ; an annotated translation into modern English by L.E. Sigler.

APA Citation

Fibonacci, L., Sigler, L. E. (1987). The book of squares. Boston: Academic Press.

MLA Citation

Fibonacci, Leonardo, ca. 1170-ca. 1240, and L. E Sigler. The Book of Squares. Boston: Academic Press, 1987.

Warning: These citations may not always be complete (especially for serials).