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. .