(1906). [Change in physical requirements for Puerto Rican recruits]. [publisher not identified].
Chicago Style (17th ed.) Citation[Change in Physical Requirements for Puerto Rican Recruits]. [Washington]: [publisher not identified], 1906.
MLA (9th ed.) Citation[Change in Physical Requirements for Puerto Rican Recruits]. [publisher not identified], 1906.
Warning: These citations may not always be 100% accurate.