伊德兹科夫斯基 & 库宗波. (2009). 睡眠决定健康: Secret to sleeping well and waking refreshed sleep. 凤凰出版社.
Chicago (17e ed.) Bronvermelding伊德兹科夫斯基 en 库宗波. 睡眠决定健康: Secret to Sleeping Well and Waking Refreshed Sleep. 凤凰出版社, 2009.
MLA (8e ed.) Bronvermelding伊德兹科夫斯基 en 库宗波. 睡眠决定健康: Secret to Sleeping Well and Waking Refreshed Sleep. 凤凰出版社, 2009.
Let op: Deze citaties zijn niet altijd 100% accuraat.