Citazione Stile APA (7a Edizione)

DR LIM, T. C. (2012). STRENGTHEN ENGLISH GRAMMAR FOR SECONDARY LEVELS (1st.). SAP EDUCATION.

Citazione stile Chigago Style (17a edizione)

DR LIM, TAN. CHENG. STRENGTHEN ENGLISH GRAMMAR FOR SECONDARY LEVELS. 1st. SINGAPORE: SAP EDUCATION, 2012.

Citatione MLA (9a ed.)

DR LIM, TAN. CHENG. STRENGTHEN ENGLISH GRAMMAR FOR SECONDARY LEVELS. 1st. SAP EDUCATION, 2012.