Παραπομπή APA

Ryder, G. H. (1978). Strength of materials (3rd ed.). Macmillan.

Παραπομπή Chicago Style

Ryder, G. H. Strength of Materials. 3rd ed. London: Macmillan, 1978.

Παραπομπή MLA

Ryder, G. H. Strength of Materials. 3rd ed. Macmillan, 1978.