In a paper I was studying it was used that $W^{n, \infty}([0,1]^d)\subset C^{n-1}([0,1]^d)$. I have searched for hours but I cannot seem to find a reference or proof of that. I suppose that it follows from some Sobolev embedding theorem but they usually only consider the case $p<\infty$.
Can someone help me out and explain why the result is true and/or provide a reference?
Thank you and best regards!