APA
Knott J. F., . (1981). Fundamentals of fracture mechanics. London: Butterworths.
Chicago
Knott J F, . 1981. Fundamentals of fracture mechanics. London: Butterworths.
Harvard
Knott J. F., . (1981). Fundamentals of fracture mechanics. London: Butterworths.
MLA
Knott J F, . Fundamentals of fracture mechanics. London: Butterworths. 1981.