1990 Science Supplement - How It Works. Brand new. Great condition. Only minor shelf wear on dust jacket - nothing major. Fast shipping from our non-smoking home. Free delivery confirmation with every order. 2009AMA025 Additional Details ------------------------------ Product description: Covers scientific events of 1988 and 1989 and includes feature articles of the year. Textbook type with sections on Astronomy and Space Science; Behavioral Sciences; Biology; Computers and Mathematics; Earth Sciences; Energy; The Environment; Health and Disease; Past, Present, and Future; Physical Sciences; Technology; and Wildlife.