$InputStreamMethods
gives the list of input stream methods that can be used.
Examples
Basic Examples (1)
Wolfram Research (2012), $InputStreamMethods, Wolfram Language function, https://reference.wolfram.com/language/ref/$InputStreamMethods.html.
Text
Wolfram Research (2012), $InputStreamMethods, Wolfram Language function, https://reference.wolfram.com/language/ref/$InputStreamMethods.html.
CMS
Wolfram Language. 2012. "$InputStreamMethods." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/$InputStreamMethods.html.
APA
Wolfram Language. (2012). $InputStreamMethods. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/$InputStreamMethods.html