German - German bibliographies - in Harvard style

In-text: (Butt, 2008)

Your Bibliography: Butt, G., 2008. Lesson planning. London: Continuum.

In-text: (Krashen and Terrell, 1995)

Your Bibliography: Krashen, S. and Terrell, T., 1995. The natural approach. New York [etc.]: Phoenix.

In-text: (Krashen, 1982)

Your Bibliography: Krashen, S., 1982. Principles and Practice in Second Language Acquisition. 1st ed. Oxford Pergamon Press.

In-text: (Teaching Materials • Lehrmaterialien, 2017)

Your Bibliography: Nthuleen.com. 2017. Teaching Materials • Lehrmaterialien. [online] Available at: <http://www.nthuleen.com/teach/grammar.html> [Accessed 6 April 2017].