On service
Subtitle: for soldiers and sailors
Publisher: [Am. S.S.U.]
Published: 1918
Place of publication: [Philadelphia, Pa.]
Language: eng
Number of pages: 12
Subjects: Sunday schools; Christian education of adults; United States. Army; United States; United States. Navy
Notes: Cover title.

"Issued by the American Sunday-school Union for use in the American Army and Navy...these lessons follow the Improved Uniform Sunday School Series for 1918, but may be used at any time"