Ayres, F. (1981). Theory and problems of differential equations in SI metric units. Mcgraw Hill.
Dyfyniad Arddull ChicagoAyres, F. Theory and Problems of Differential Equations in SI Metric Units. Singapore: Mcgraw Hill, 1981.
Dyfyniad MLAAyres, F. Theory and Problems of Differential Equations in SI Metric Units. Mcgraw Hill, 1981.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.