Dyfyniad APA
(1987). Exercises and test papers for certificate arithmetic. Heinemann Educational publ..
Dyfyniad Arddull Chicago
Exercises and Test Papers for Certificate Arithmetic. London: Heinemann Educational publ., 1987.
Dyfyniad MLA
Exercises and Test Papers for Certificate Arithmetic. Heinemann Educational publ., 1987.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.