APA (7th ed.) Citation

Blackman, D. R. (1969). SI units in engineering / by D.R. Blackman. Macmillan.

Chicago Style (17th ed.) Citation

Blackman, D. R. SI Units in Engineering / by D.R. Blackman. Macmillan, 1969.

MLA (9th ed.) Citation

Blackman, D. R. SI Units in Engineering / by D.R. Blackman. Macmillan, 1969.

Warning: These citations may not always be 100% accurate.