Which one of the three sentences below is correct (if any) ? Present perfect / past simple Which one of the three sentences below is correct (if any) ? "I have found a book which describes in every detail rural life in Vietnam." "I found a book which describes in every detail rural life in Vietnam." "I have just found a book which describes in every detail rural life in Vietnam." Thank you in advance to any one who may be able to give me a clue.