Cita APA (7a ed.)

Bellman, R. (1964). Perturbation Techniques in Mathematics, Physics, and Engineering. Holt, Rinehart and Winston.

Cita Chicago Style (17a ed.)

Bellman, Richard. Perturbation Techniques in Mathematics, Physics, and Engineering. Nueva York: Holt, Rinehart and Winston, 1964.

Cita MLA (9a ed.)

Bellman, Richard. Perturbation Techniques in Mathematics, Physics, and Engineering. Holt, Rinehart and Winston, 1964.