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.
Čikaški stil citiranja (17. izdanje)伊德兹科夫斯基 i 库宗波. 睡眠决定健康: Secret to Sleeping Well and Waking Refreshed Sleep. 凤凰出版社, 2009.
MLA način citiranja (8. izdanje)伊德兹科夫斯基 i 库宗波. 睡眠决定健康: Secret to Sleeping Well and Waking Refreshed Sleep. 凤凰出版社, 2009.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.