APA

Drilling and Completion Committee, Petroleum Industry Training Sevice (PITS) & Petroleum Industry Training Sevice (PITS). (2002). Standards for wellsite supervision of drilling, completions and workovers. Calgary, Alberta: Petroleum Industry Training Service (PITS).

Chicago

Drilling and Completion Committee, Petroleum Industry Training Sevice (PITS) and Petroleum Industry Training Sevice (PITS). 2002. Standards for wellsite supervision of drilling, completions and workovers. Calgary, Alberta: Petroleum Industry Training Service (PITS).

Harvard

Drilling and Completion Committee, Petroleum Industry Training Sevice (PITS) and Petroleum Industry Training Sevice (PITS). (2002). Standards for wellsite supervision of drilling, completions and workovers. Calgary, Alberta: Petroleum Industry Training Service (PITS).

MLA

Drilling and Completion Committee, Petroleum Industry Training Sevice (PITS) and Petroleum Industry Training Sevice (PITS). Standards for wellsite supervision of drilling, completions and workovers. Calgary, Alberta: Petroleum Industry Training Service (PITS). 2002.