Vijayaraghavan, V. (1981). Perturbation methods. Department of Mathematics, CUSAT.
Chicago-стиль цитированияVijayaraghavan, V. Perturbation Methods. Kochi: Department of Mathematics, CUSAT, 1981.
MLA-цитированиеVijayaraghavan, V. Perturbation Methods. Department of Mathematics, CUSAT, 1981.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.