APA (7th ed.) Citation

Shishkin, G. I., & Shishkina, L. P. (2009). Difference methods for singular perturbation problems. CRC Press.

Chicago Style (17th ed.) Citation

Shishkin, Grigory I., and Lidia P. Shishkina. Difference Methods for Singular Perturbation Problems. Boca Raton, Fla: CRC Press, 2009.

MLA (9th ed.) Citation

Shishkin, Grigory I., and Lidia P. Shishkina. Difference Methods for Singular Perturbation Problems. CRC Press, 2009.