APA (7th ed.) Citation

Andrew Er's. (2013). Mathematics tutor: Worksheets. Educational Pub. House Pte Ltd.

Chicago Style (17th ed.) Citation

Andrew Er's. Mathematics Tutor: Worksheets. Sg: Educational Pub. House Pte Ltd, 2013.

MLA (9th ed.) Citation

Andrew Er's. Mathematics Tutor: Worksheets. Educational Pub. House Pte Ltd, 2013.

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