APA
Hancock H., . (1960). Theory of maxima and minima. New York: Dover Publications.
Chicago
Hancock Harris, . 1960. Theory of maxima and minima. New York: Dover Publications.
Harvard
Hancock H., . (1960). Theory of maxima and minima. New York: Dover Publications.
MLA
Hancock Harris, . Theory of maxima and minima. New York: Dover Publications. 1960.