Bellman, R. (1964). Perturbation Techniques in Mathematics, Physics, and Engineering. Holt, Rinehart and Winston.
Citación estilo ChicagoBellman, Richard. Perturbation Techniques in Mathematics, Physics, and Engineering. Nueva York: Holt, Rinehart and Winston, 1964.
Cita MLABellman, Richard. Perturbation Techniques in Mathematics, Physics, and Engineering. Holt, Rinehart and Winston, 1964.
Warning: These citations may not always be 100% accurate.