Arborists' certification study guide /
prepared by Sharon J. Lilly ; contribution authors Sharon J. Lilly ... [et. al.] ; edited by Dan Neely.
APA Citation
Lilly, S., Neely, D., International Society of Arboriculture. (1993). Arborists' certification study guide. [Urbana, Ill.]: International Society of Arboriculture.
MLA Citation
Lilly, Sharon, Dan Neely, and International Society of Arboriculture. Arborists' Certification Study Guide. [Urbana, Ill.]: International Society of Arboriculture, 1993.
Warning: These citations may not always be complete (especially for serials).