APA (7th ed.) Citation

Younge, R. (1658). An experimental index of the heart: In which (as in a looking-glass) both profane and civil men may see enough, to make them in love with religion, being a most happie and providential conference between two friends (after the ones heart was changed) the which may both provoke and incourage all sorts of sinners to read the same, that (in the least) love themselves : drawn up and published for the good of all. Sold onely by James Crump ... and by Henry Cripps ....

Chicago Style (17th ed.) Citation

Younge, Richard. An Experimental Index of the Heart: In Which (as in a Looking-glass) Both Profane and Civil Men May See Enough, to Make Them in Love with Religion, Being a Most Happie and Providential Conference Between Two Friends (after the Ones Heart Was Changed) the Which May Both Provoke and Incourage All Sorts of Sinners to Read the Same, That (in the Least) Love Themselves : Drawn Up and Published for the Good of All. [London]: Sold onely by James Crump ... and by Henry Cripps ..., 1658.

MLA (9th ed.) Citation

Younge, Richard. An Experimental Index of the Heart: In Which (as in a Looking-glass) Both Profane and Civil Men May See Enough, to Make Them in Love with Religion, Being a Most Happie and Providential Conference Between Two Friends (after the Ones Heart Was Changed) the Which May Both Provoke and Incourage All Sorts of Sinners to Read the Same, That (in the Least) Love Themselves : Drawn Up and Published for the Good of All. Sold onely by James Crump ... and by Henry Cripps ..., 1658.

Warning: These citations may not always be 100% accurate.