cf.
The abbreviation that means “compare.”
Cf. is Latin confer, “compare.” Use it to point to a contrasting source, not to mean “see.” For a plain pointer, write see. Do not write cf. as a stylish see.
Examples
UseSee Jones 2019.
UseCf. the earlier draft, which denied the claim.
AvoidCf. Jones 2019. (If you only mean “look at Jones.”)