APA
American Petroleum Institute A., . (1978). Hydrogen - assisted crack growth in 2-1/4 Cr-1 Mo Steel. Washington: American Petroleum Institute, API.
Chicago
American Petroleum Institute API, . 1978. Hydrogen - assisted crack growth in 2-1/4 Cr-1 Mo Steel. Washington: American Petroleum Institute, API.
Harvard
American Petroleum Institute A., . (1978). Hydrogen - assisted crack growth in 2-1/4 Cr-1 Mo Steel. Washington: American Petroleum Institute, API.
MLA
American Petroleum Institute API, . Hydrogen - assisted crack growth in 2-1/4 Cr-1 Mo Steel. Washington: American Petroleum Institute, API. 1978.