APA Style

Skalle, Pal. (2015). Pressure Control During Oil Well Drilling (6). : bookboon.com.

Chicago Style

Skalle, Pal. Pressure Control During Oil Well Drilling. 6 : bookboon.com, 2015. Teknik Perminyakan.

MLA Style

Skalle, Pal. Pressure Control During Oil Well Drilling. 6 : bookboon.com, 2015. Teknik Perminyakan.

Turabian Style

Skalle, Pal. Pressure Control During Oil Well Drilling. 6 : bookboon.com, 2015. Teknik Perminyakan.