@book{55844,
	author = {Sundel, Martin, and Sundel, Sandra Stone,},
	title = {Behavior change in the human services :},
	publisher = {SAGE Publications, Inc,},
	year = {2018.},
	address = {Los Angeles, CA :},
	edition = {6th edition.},
	url = {https://sk.sagepub.com/books/behavior-change-in-the-human-services-6e}
}