Gaya APA

Kristensson, G., , . (2010). Second Order Differential Equations . New York, Springer New York, 2: New York, Springer New York, 2010.

Gaya MLA

Kristensson, Gerhard., , . "Second Order Differential Equations". New York, Springer New York, 2: New York, Springer New York, 2010, 2010. .