APA (7th ed.) Citation

El-Sayed, L. H., Hassan, E. M., Amin, A. M., & Ismail, A. A. Immunocytochemical studies of carcinoembryanic antigen (CEA) in bilharzial bladder.

Chicago Style (17th ed.) Citation

El-Sayed, L. H., E. M. Hassan, A. M. Amin, and A. A. Ismail. Immunocytochemical Studies of Carcinoembryanic Antigen (CEA) in Bilharzial Bladder.

MLA (9th ed.) Citation

El-Sayed, L. H., et al. Immunocytochemical Studies of Carcinoembryanic Antigen (CEA) in Bilharzial Bladder.

Warning: These citations may not always be 100% accurate.