APA (7th ed.) Citation

Hartley, H. O., & Sielken, R. L. (1980). Smooth nonparametric regression by quadratic programming. Institute of Statistics, Texas A & M University.

Chicago Style (17th ed.) Citation

Hartley, H. O., and Robert L. Sielken. Smooth Nonparametric Regression by Quadratic Programming. College Station, Texas: Institute of Statistics, Texas A & M University, 1980.

MLA (9th ed.) Citation

Hartley, H. O., and Robert L. Sielken. Smooth Nonparametric Regression by Quadratic Programming. Institute of Statistics, Texas A & M University, 1980.