APA
Danavox Symposium, Jensen J. H., . (1990). Presbyacusis and other age related aspects. Copenhague: The Danavox Jubilee Foundation.
Chicago
Danavox Symposium, Jensen Janne Hartvig, . 1990. Presbyacusis and other age related aspects. Copenhague: The Danavox Jubilee Foundation.
Harvard
Danavox Symposium, Jensen J. H., . (1990). Presbyacusis and other age related aspects. Copenhague: The Danavox Jubilee Foundation.
MLA
Danavox Symposium, Jensen Janne Hartvig, . Presbyacusis and other age related aspects. Copenhague: The Danavox Jubilee Foundation. 1990.