My best reference on this is the Manual of Photography by R E Jacobson (7th Edition, 1978) which prefers to use the term "correct perspective", which they define as "when a print is viewed in such a way that the apparent relation between objects as to their size, position, etc., is the same as in the original scene. This is achieved when the print is viewed at such a distance that it subtends at the eye the same angle as was subtended by the original scene at the lens." and they give this diagram:
There is a lot more discussion of perspective. They also point out that viewing a print with the "correct perspective" may be very different from viewing the print at a comfortable viewing distance. The two generally coincide for uncropped photos printed at 5"x7" or larger and taken with a lens of about "normal" focal length.
I hope this helps.