APA

Merriam-Webster I., Merriam-Webster I., .Merriam-Webster's dictionary of English usage. Springfield, Mass: Merriam-Webster, Inc.

Chicago

Merriam-Webster Inc, Merriam-Webster Inc, .Merriam-Webster's dictionary of English usage. Springfield, Mass: Merriam-Webster, Inc.

Harvard

Merriam-Webster I., Merriam-Webster I., .Merriam-Webster's dictionary of English usage. Springfield, Mass: Merriam-Webster, Inc.

MLA

Merriam-Webster Inc, Merriam-Webster Inc, .Springfield, Mass: Merriam-Webster, Inc. .