APA Style

Lee, Helen. (2009). Upper Block New Syllabus Science Book 1 . Singapore: Educational Publishing House.

Chicago Style

Lee, Helen. Upper Block New Syllabus Science Book 1. Singapore: Educational Publishing House, 2009. Text.

MLA Style

Lee, Helen. Upper Block New Syllabus Science Book 1. Singapore: Educational Publishing House, 2009. Text.

Turabian Style

Lee, Helen. Upper Block New Syllabus Science Book 1. Singapore: Educational Publishing House, 2009. Print.