Colton, D. (1976). Solution of boundary value problems by the method of integral operators. Pitman Pub.
Chicago-viite (17. p.)Colton, D.L. Solution of Boundary Value Problems by the Method of Integral Operators. London ; San Francisco: Pitman Pub, 1976.
MLA-viite (9. p.)Colton, D.L. Solution of Boundary Value Problems by the Method of Integral Operators. Pitman Pub, 1976.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.