Make the first line of your bibliography flush with the left side of the margin. Indent all subsequent lines in the entry four spaces from the left margin.This rule is stipulated by the American Psychological Association style guide, which covers research topics in the social sciences.
Keep the first line of your entry flush with the left margin. Indent all subsequent lines five spaces from the left margin. This is the style for bibliographies in the Chicago Manual of Style, which covers a wide range of academic and r
esearch fields.
Make the first line of your bibliographic entry flush with the left margin. Indent all subsequent lines a half inch from the left margin. This is the format recommended by the Modern Languages Association style guide, which applies to research in the humanities, literature and language.
Keep the first line of your bibliographic entry flush with the left margin. Indent all other lines as you would with a normal "body text" paragraph indent in the word processing software of your preference. This is the style advised by the Turabian style guide, which is an offshoot of the Chicago Manual of Style and is used, among other disciplines, in the natural sciences.