Gaya APA
RUTLEDGE, W, A., CAIRNS, T, W. (1969).
Mathematic for business analysis (2nd ed.).
New York:
Holt, Rinehart and WInston.
Gaya MLA
RUTLEDGE, William, A.., CAIRNS, Thomas, W..
"Mathematic for business analysis".
2nd ed.
New York:
Holt, Rinehart and WInston,
1969.
Buku.