NeXT Computer, Inc. (1991). NeXT operating system software. Addison-Wesley Pub. Co..
芝加哥风格引文NeXT Computer, Inc. NeXT Operating System Software. Reading, Mass.: Addison-Wesley Pub. Co., 1991.
MLA引文NeXT Computer, Inc. NeXT Operating System Software. Addison-Wesley Pub. Co., 1991.
警告：这些引文格式不一定是100％准确.