APA Style

Abercombie, Katie. (1988). Worry. (-). Colorado: Group Books.

Chicago Style

Abercombie, Katie. Worry.. - Colorado: Group Books, 1988. Textbook.

MLA Style

Abercombie, Katie. Worry.. - Colorado: Group Books, 1988. Textbook.

Turabian Style

Abercombie, Katie. Worry.. - Colorado: Group Books, 1988. Textbook.