Dyfyniad APA

English Language Services & English language services. (1964). English 900.: Book three. Macmillan.

Dyfyniad Arddull Chicago

English Language Services and English language services. English 900.: Book Three. London: Macmillan, 1964.

Dyfyniad MLA

English Language Services and English language services. English 900.: Book Three. Macmillan, 1964.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.