एपीए उद्धरण

Hardle, W. (1990). Applied nonparametric regression. Cambridge [England],New York: Cambridge University Press.

शिकागो स्टाइल उद्धरण

Hardle, Wolfgang. Applied Nonparametric Regression. Cambridge [England],New York: Cambridge University Press, 1990.

एमएलए उद्धरण

Hardle, Wolfgang. Applied Nonparametric Regression. Cambridge [England],New York: Cambridge University Press, 1990.