Παραπομπή APA

Shrock, R. R. (1948). Sequence in layered rocks. McGraw hill.

Παραπομπή Chicago Style

Shrock, Robert R. Sequence in Layered Rocks. London: McGraw hill, 1948.

Παραπομπή MLA

Shrock, Robert R. Sequence in Layered Rocks. McGraw hill, 1948.