APA Style

Hamilton,james B. (1977). Direct field trips (NULL). NULL: AAVIW.

Chicago Style

Hamilton,james B. Direct field trips. NULL NULL: AAVIW, 1977. Text.

MLA Style

Hamilton,james B. Direct field trips. NULL NULL: AAVIW, 1977. Text.

Turabian Style

Hamilton,james B. Direct field trips. NULL NULL: AAVIW, 1977. Print.