APA-viite

Lang, G. (1990). Personal conversations: Roles and skills for counsellors.

Chicago-tyylinen lähdeviittaus

Lang, Gerrit. Personal Conversations: Roles and Skills for Counsellors. London, Routledge, 1990.

MLA-viite

Lang, Gerrit. Personal Conversations: Roles and Skills for Counsellors. 1990.