(英) 白塞尔 & 姚瑶. (2021). 书店里的七种人: Seven kinds of people you find in bookshops. 北京联合出版公司.
Chicago (17e ed.) Bronvermelding(英) 白塞尔 en 姚瑶. 书店里的七种人: Seven Kinds of People You Find in Bookshops. 北京联合出版公司, 2021.
MLA (8e ed.) Bronvermelding(英) 白塞尔 en 姚瑶. 书店里的七种人: Seven Kinds of People You Find in Bookshops. 北京联合出版公司, 2021.
Let op: Deze citaties zijn niet altijd 100% accuraat.