APA引文

HELDIN Manurung, & Herman Sudrajat. Everyday English Grammar & Exercise.

Chicago Style Citation

HELDIN Manurung, and Herman Sudrajat. Everyday English Grammar & Exercise.

MLA引文

HELDIN Manurung, and Herman Sudrajat. Everyday English Grammar & Exercise.

警告：这些引文格式不一定是100％准确.