Lefort, G. (1964). Algebra and analysis: Problems and solutions. North-Holland Publishing.
Čikaški stil citiranja (17. izdanje)Lefort, G. Algebra and Analysis: Problems and Solutions. Amsterdam: North-Holland Publishing, 1964.
MLA način citiranja (9. izdanje)Lefort, G. Algebra and Analysis: Problems and Solutions. North-Holland Publishing, 1964.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.