Gaya APA

Christophersen, Paul. (1981). An English phonetics course / by Paul Christophersen . : Burnt Mill : Longmans.

Gaya Chicago

Christophersen, Paul. An English phonetics course / by Paul Christophersen. : Burnt Mill : Longmans, 1981. Buku.

Gaya MLA

Christophersen, Paul. An English phonetics course / by Paul Christophersen. : Burnt Mill : Longmans, 1981. Buku.

Gaya Turabian

Christophersen, Paul. An English phonetics course / by Paul Christophersen. : Burnt Mill : Longmans, 1981. Buku.