Ayres, F. (1987). Schaum's outline of theory and problems of differential equations in SI metric units. McGraw-Hill.
Цитирование в стиле Чикаго (17-е изд.)Ayres, Frank. Schaum's Outline of Theory and Problems of Differential Equations in SI Metric Units. McGraw-Hill, 1987.
Цитирование MLA (9-е изд.)Ayres, Frank. Schaum's Outline of Theory and Problems of Differential Equations in SI Metric Units. McGraw-Hill, 1987.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.