APA
Agres F. ., . (1981). Theory and problems of differential equations in SI metric units. Singapore: McGraw-Hill International Book Company.
Chicago
Agres Frank, . 1981. Theory and problems of differential equations in SI metric units. Singapore: McGraw-Hill International Book Company.
Harvard
Agres F. ., . (1981). Theory and problems of differential equations in SI metric units. Singapore: McGraw-Hill International Book Company.
MLA
Agres Frank, . Theory and problems of differential equations in SI metric units. Singapore: McGraw-Hill International Book Company. 1981.