APA (7th ed.) Citation

Brook Lapping Productions. (2009). How light travels. Teachers TV/UK Dept. of Education.

Chicago Style (17th ed.) Citation

Brook Lapping Productions. How Light Travels. [England]: Teachers TV/UK Dept. of Education, 2009.

MLA (9th ed.) Citation

Brook Lapping Productions. How Light Travels. Teachers TV/UK Dept. of Education, 2009.

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