Gaya APA

Bouma, P, J, P, J. et al (1971). Physical Aspects of Colour : An Introduction to the Scientific Study Of Colour Stimuli and Colour (2nd ed). Netherlands: Philips Technical Library, Machmillan and Co.Ltd.

Gaya MLA

Bouma, P., J., Pieter, Johannes. et al. "Physical Aspects of Colour : An Introduction to the Scientific Study Of Colour Stimuli and Colour". 2nd ed Netherlands: Philips Technical Library, Machmillan and Co.Ltd, 1971. Text.