AMA:
Helbling M. Framing Immigration. Varieties of Arguments, Actors and Opportunity Structures. 2012. Available at: http://www.mmg.mpg.de/index.php?id=1103. Accessed ###date###.

APA (6th edition):
Helbling, M. (2012). Framing Immigration. Varieties of Arguments, Actors and Opportunity Structures. Lecture, Max Planck Institute for the Study of Religious and Ethnic Diversity, Göttingen. Retrieved ###date###, from http://www.mmg.mpg.de/index.php?id=1103

Chicago (16th edition):
Helbling, Marc. 2012. 'Framing Immigration. Varieties of Arguments, Actors and Opportunity Structures'. Lecture. http://www.mmg.mpg.de/index.php?id=1103 (accessed ###date###).

Harvard:
Helbling, M. (2012). Framing Immigration. Varieties of Arguments, Actors and Opportunity Structures. Available at: http://www.mmg.mpg.de/index.php?id=1103 [Accessed ###date###].

MLA (7th edition):
Helbling, Marc. 'Framing Immigration. Varieties of Arguments, Actors and Opportunity Structures'. Max Planck Institute for the Study of Religious and Ethnic Diversity, Göttingen. 2012. Lecture. Accessed ###date###. http://www.mmg.mpg.de/index.php?id=1103