APA-ийн эшлэл(7 дахь хэвлэлт)

Lubbock, T., & Martin, P. (2012). On their own initiative: How politicians use direct democracy in the United States.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Lubbock, T., ба P. Martin. On Their Own Initiative: How Politicians Use Direct Democracy in the United States. 2012.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Lubbock, T., ба P. Martin. On Their Own Initiative: How Politicians Use Direct Democracy in the United States. 2012.