Geffen, L. Common upper respiratory tract problems in the elderly — A guide to clinical diagnosis and prudent prescription. AOSIS.
Chicago Style (17th ed.) CitationGeffen, L. Common Upper Respiratory Tract Problems in the Elderly — A Guide to Clinical Diagnosis and Prudent Prescription. AOSIS.
MLA (9th ed.) CitationGeffen, L. Common Upper Respiratory Tract Problems in the Elderly — A Guide to Clinical Diagnosis and Prudent Prescription. AOSIS.
Warning: These citations may not always be 100% accurate.