库珀 & 杨玲玲. (2015). 宝宝不想睡: Baby who wouldn't go to bed. 北京联合出版公司.
Chicago Style (17th ed.) Citation库珀 i 杨玲玲. 宝宝不想睡: Baby Who Wouldn't Go to Bed. 北京联合出版公司, 2015.
Cita MLA库珀 i 杨玲玲. 宝宝不想睡: Baby Who Wouldn't Go to Bed. 北京联合出版公司, 2015.
Atenció: Aquestes cites poden no estar 100% correctes.