APA

Adams D., . (2008). A handbook of diction for singers. Oxford: Oxford University Press.

Chicago

Adams David, . 2008. A handbook of diction for singers. Oxford: Oxford University Press.

Harvard

Adams D., . (2008). A handbook of diction for singers. Oxford: Oxford University Press.

MLA

Adams David, . A handbook of diction for singers. Oxford: Oxford University Press. 2008.