Não informado. (1933). Insurance almanac: Who, what, when and where in insurance. Underwriter Printing.
Chicago-referens (17:e uppl.)Não informado. Insurance Almanac: Who, What, When and Where in Insurance. Englewood, NJ: Underwriter Printing, 1933.
MLA-referens (8:e uppl.)Não informado. Insurance Almanac: Who, What, When and Where in Insurance. Underwriter Printing, 1933.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.