MLA

Parker, Peter, 1804-1888. Printed hymn composed for a sermon by Peter Parker in Macao on the death of Mary Sword. 8, folder 4. 1845 July 24. https://collections.library.yale.edu/catalog/16808834.

APA, 6th edition

Parker, Peter, 1804-1888. (["8, folder 4"])(1845 July 24)[Printed hymn composed for a sermon by Peter Parker in Macao on the death of Mary Sword]. https://collections.library.yale.edu/catalog/16808834.