Παραπομπή APA

Liu, W. K., & Belytschko, T. P. (1984). Innovative methods for nonlinear problems. Pineridge.

Παραπομπή Chicago Style

Liu, W K., και T Park Belytschko. Innovative Methods for Nonlinear Problems. UK: Pineridge, 1984.

Παραπομπή MLA

Liu, W K., και T Park Belytschko. Innovative Methods for Nonlinear Problems. Pineridge, 1984.