How Did the Apollo Command and Lunar Modules Become One?

NASA Apollo Digest Series, period filmstock - Saturn V, Command Module, Service Module, Lunar Module

Apollo Lunar Ascent and Docking Procedure (NASA Archive)

Apollo Docking Maneuver – Lunar Module Extraction (NASA Archive)

Apollo Command Module – Basic Specifications (NASA Archive)

Apollo 11 - Day 1 (Full Mission)

How the Apollo Spacecraft works: Part 2

Apollo Docking sequence - Connecting the Command Module to the Lunar Module.