APA (7th ed.) Citation

Frank, L. S. (1990). Singular perturbations I: Spaces and singular perturbations on manifolds without boundary. North-Holland.

Chicago Style (17th ed.) Citation

Frank, Leonid S. Singular Perturbations I: Spaces and Singular Perturbations on Manifolds Without Boundary. Amsterdam: North-Holland, 1990.

MLA (9th ed.) Citation

Frank, Leonid S. Singular Perturbations I: Spaces and Singular Perturbations on Manifolds Without Boundary. North-Holland, 1990.