The Penn State Libraries shelve materials by Library of Congress call number.

The assigned call numbers for Military Science and Naval Science are U and V, though items are found in others areas as well, such as D (World History), E (History of the Americas), J (Political Science), and TL (Aeronautics). For University Park Libraries visitors, books and periodicals with the call numbers U and V are located on the 3rd floor of Paterno Library.

Library of Congress call numbers relating to Military Service:

U: Military Science (general)

UA: Armies : organization, distribution, military situation

UB: Military administration

UB 416 - 419: Minorities, women, etc. in armed forces

UC: Maintenance and transportation

UD: Infantry

UE: Cavalry. Armor

UF: Artillery

UG: Military engineering. Air forces

UH: Other services

V: Naval science (general)

VA: Navies : organization, distribution, naval situation

VB: Naval administration

VC: Naval maintenance

VD: Naval seamen

VE: Marines

VF: Naval ordnance

VG: Minor service of navies

VK: Navagation. Merchant marine

VM: Naval architecture. Shipbuilding. Marine engineering