Diversity Visa Program - Official GreenCard Lottery
Entering the USA: procedures, documents, and rules
12.1 List A Documents That Establish Identity and Employment Authorization | USCIS
Green card - Wikipedia
Visa policy of the United States - Wikipedia
Nigerians in Chicago, Illinois State, USA - QUESTION: As a USA Green Card holder (permanent resident), which countries can I visit (for tourism) without needing a visa for that country? ANSWER: First
Green Card Renewal Questions and Answers | CitizenPath