Gaya APA

Leech, G., Loney, S. (2004). Plane Trigonometry Part 1 . New Delhi: AITBS Publishers and Distibutors.

Gaya MLA

Leech, Geoffrey., Loney, S.L.. "Plane Trigonometry Part 1". New Delhi: AITBS Publishers and Distibutors, 2004. Text.