APA (7th ed.) Citation

Liddle, C. J. (1970). Optimisation of simple cyclic processes. Chemical & Process Engineering, 51, 103.

Chicago Style (17th ed.) Citation

Liddle, C. J. "Optimisation of Simple Cyclic Processes." Chemical & Process Engineering 51 (1970): 103.

MLA (9th ed.) Citation

Liddle, C. J. "Optimisation of Simple Cyclic Processes." Chemical & Process Engineering, vol. 51, 1970, p. 103.