APA

Lenhardt H., Grebel & Wambsganss. (2010). Apparent Places of Fundamental Stars 2011. : .

Chicago

Lenhardt H, Grebel and Wambsganss. 2010. Apparent Places of Fundamental Stars 2011. : .

Harvard

Lenhardt H., Grebel and Wambsganss. (2010). Apparent Places of Fundamental Stars 2011. : .

MLA

Lenhardt H, Grebel and Wambsganss. Apparent Places of Fundamental Stars 2011. : . 2010.