Gaya APA

Kassing, G. (2017). 2017 & 2018 NIRSA Flag & Touch Football Rules Book & Officials' Manual (18). United Kingdom: Nirsa : leaders in college recreation.

Gaya MLA

Kassing, Gayle. "2017 & 2018 NIRSA Flag & Touch Football Rules Book & Officials' Manual". 18 United Kingdom: Nirsa : leaders in college recreation, 2017. Text.