2005 Flashcards for the National (ASBOG^®) Exam: (236 flashcards) ($32)

2002 Flashcards for the Hydrogeology Certification Exam: (95 flashcards) ($20)

Flashcards cover the principles, concepts, terms, definitions, and regulations in a question and answer format with the answers on the reverse side. They are pocket sized and so may be carried everywhere and taken out to be used whenever you have a few minutes to spare. All flashcards in the CHG set are also included in the ASBOG^® set.