Gaya APA

FORSYTH, A, R. (1959). THEORY OF DIFFERENTIAL EQUATIONS: EXACT EQUATIONS AND PFAFFS'S PROBLEM (Volume 1). New York: Dover.

Gaya MLA

FORSYTH, Andrew, Russell. "THEORY OF DIFFERENTIAL EQUATIONS: EXACT EQUATIONS AND PFAFFS'S PROBLEM". Volume 1 New York: Dover, 1959. Textbook.