是可數的,例如:
1、There is a list of references at the end of each chapter.每一章的後面都有一組參考書目。
2、The book is full of references to growing up in India.這本書談到許多在印度怎樣長大成人的事。
3、He conned his way into the job using false references.他用假的推薦信騙取了那份工作。