Gaya APA

Hawkins, W, F., Mackin, R. (1967). English studies series 3b Physics mathematics biology applied science collacational & pronouncing (1967). : London : Oxford University Press.,.

Gaya MLA

Hawkins, William, F., Mackin, Ronald. "English studies series 3b Physics mathematics biology applied science collacational & pronouncing". 1967 : London : Oxford University Press.,, 1967. Text.