APA (7e ed.) Bronvermelding

Luppens, J. (1990). New York city a symbol. Global Mission Centers.

Chicago (17e ed.) Bronvermelding

Luppens, John. New York City a Symbol. [Silver Spring, MD]: Global Mission Centers, 1990.

MLA (9e ed.) Bronvermelding

Luppens, John. New York City a Symbol. Global Mission Centers, 1990.