Shreve, R. N. (1956). Industrial research and development in the Philippines. s.n.].
Lua i Stíl Chicago (17ú heag.)Shreve, Randolph Norris. Industrial Research and Development in the Philippines. Manila: s.n.], 1956.
Lua MLA (9ú heag.)Shreve, Randolph Norris. Industrial Research and Development in the Philippines. s.n.], 1956.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.