Gaya APA

Littlejohn, C, E., Meenaghan, G, F. (1971). An introduction to chemical engineering (1971). : New York : Rienhold Publishing Corporation,.

Gaya MLA

Littlejohn, C, E., Meenaghan, G, F. "An introduction to chemical engineering". 1971 : New York : Rienhold Publishing Corporation,, 1971. Text.