Absolute internal-conversion coefficients measured with high electron resolution and with a Ge(Li) spectrometer have been studied in seven transitions in Zn67 from 78-h Ga67 decay. From these and from L subshell ratios for the three lowest energy transitions, we deduce the following multipolarities: 93 keV, pure E2184 keV,M1+(8-12% E2) all others predominantly M1, with E2 required in the 91- and 494-keV transitions. The retardation factor of the l-allowed 91-keV transition is 500, which is larger than that (340) for the l-forbidden 184-keV transition (E2-component enhancement of 17) originating at the same level. Conversion data, together with a reanalysis of γ-γ angular-correlation measurements of Rietjens and Van den Bold, lead unambiguously to the following level spin assignments, in agreement with those from (d,p) stripping and Coulomb excitation: (keV,Jπ) ground state 52-; 93.317+/-0.02, 1/2 - 184.595+/-0.04,32-393.59+/-0.04,32-887.87+/-0.1,32-. Conversion coefficients show somewhat better agreement with those calculated by Sliv and Band (extrapolated from Z=33) than with those of Rose for the L shell, but indicate that both computations give L-shell coefficients too small (~10% for Sliv and Band, ~20% for Rose) for this Z range. The empirical Z displacement rule for MI conversion due to Chu and Perlman (∆Z=-7.0), which, applied to the unscreened, point-nucleus M conversion values of Rose gives agreement for all energies and multipolarities above Z=50, is found to require ∆Z=-9.5 for agreement at Z=30. Six of nine predicted lines in the KLL Auger spectrum of Zn are resolved; energies determined are 7-13 eV above those calculated by Hörnfeldt, and intensities agree with recent experimental results at Z=32 except for the K-L1L3(3P1) line, where our intensity is lower by a factor of 2.