APA (7th ed.) Citation

Hennessey, J. J. (1957). Vanguard: The artificial earth satellite. Philippine Studies : A Quarterly.

Chicago Style (17th ed.) Citation

Hennessey, James J. "Vanguard: The Artificial Earth Satellite." Philippine Studies : A Quarterly 1957.

MLA (9th ed.) Citation

Hennessey, James J. "Vanguard: The Artificial Earth Satellite." Philippine Studies : A Quarterly, 1957.

Warning: These citations may not always be 100% accurate.