APA
King A., Otto S. & Billingham J. (2003). Differential equations: Linear, nonlinear, ordinary, partial. Cambridge: Cambridge Uni Pr.
Chicago
King A.C, Otto S.R and Billingham J. 2003. Differential equations: Linear, nonlinear, ordinary, partial. Cambridge: Cambridge Uni Pr.
Harvard
King A., Otto S. and Billingham J. (2003). Differential equations: Linear, nonlinear, ordinary, partial. Cambridge: Cambridge Uni Pr.
MLA
King A.C, Otto S.R and Billingham J. Differential equations: Linear, nonlinear, ordinary, partial. Cambridge: Cambridge Uni Pr. 2003.