Gaya APA

Pritchard, R., Guy, J, , , , , , , J, , -, , C, N. (1977). Handbook of industrial gas utilization. Engineering principles and practice. (1977). : New York : Van Nostrand Reinhold Co.,.

Gaya MLA

Pritchard, R.., Guy, J, , , , , , , J., , -, , Connor,, N.. "Handbook of industrial gas utilization. Engineering principles and practice.". 1977 : New York : Van Nostrand Reinhold Co.,, 1977. Text.