תעלומת ביאטריס בולווין
Publisher: Sapiaḥ
Published: 196u
Place of publication: Tel Aviv
Language: heb
Number of pages: 225
Subjects: Donald Lam (Fictitious character); Fiction; Bertha Cool (Fictitious character); Murder; Investigation; Private investigators
Other titles: Taʻalumat Biʼaṭris Bolṿin
Work titles: Fools die on Friday