Carroll, J., & Johnston, T. (1988). Insight guides: Northern California. APA Pub.
芝加哥风格引文Carroll, Jon, 与 Tracy Johnston. Insight Guides: Northern California. Singapore: APA Pub, 1988.
MLA引文Carroll, Jon, 与 Tracy Johnston. Insight Guides: Northern California. APA Pub, 1988.
警告：这些引文格式不一定是100％准确.