Παραπομπή APA

Pullen, H. T., & Prevost, E. (1969). Bitumen emulasions and cut-backs for surface treatment and soil stabilization. [s.l.]: [s.n.].

Παραπομπή Chicago Style

Pullen, H. T., and E. Prevost. Bitumen Emulasions and Cut-backs for Surface Treatment and Soil Stabilization. [s.l.]: [s.n.], 1969.

Παραπομπή MLA

Pullen, H. T., and E. Prevost. Bitumen Emulasions and Cut-backs for Surface Treatment and Soil Stabilization. [s.l.]: [s.n.], 1969.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.