American Psychological Association 6th edition

Brown, R. [ca. 1973]. A first language : the early stages [Book]. London: Allen & Unwin.

ISO-690 (author-date, English)

BROWN, Roger, 1973. A first language : the early stages. London: Allen & Unwin. ISBN 0044010010.

Modern Language Association 9th edition

Brown, R. A first language : the early stages. book, Allen & Unwin, 1973.

Mohr Siebeck - Recht (Deutsch - Österreich)

Brown, Roger: A first language : the early stages, London 1973.

Emerald - Harvard

Brown, R. (1973), A first language : the early stages, Bd. , Allen & Unwin, London.

Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.