Hallo there, I think this is the original version of the song.
Have fun, it's just easy to playing ;)



Enter on F 


Dm (xx0231@1)      B (x2444x@1)      F (133211@1)     CIf (x32010@1)you?re going to San Francisco,
Dm (xx0231@1)      B (x2444x@1)          F (133211@1)           Cbe (x32010@1)sure to wear some flowers in your hair.
Dm (xx0231@1)      F (133211@1)     B (x2444x@1)     FIf (133211@1)you're going to San Francisco,
F (133211@1)       Am (x02210@1)     Dm (xx0231@1)          Cyou're (x32010@1)gonna meet some gentle people there.


F#m (244222@1)          D (xx0232@1)     A (x02220@1)     EFor (022100@1)those who come to San Francisco
F#m (244222@1)     D (xx0232@1)      A (x02220@1)          Esummer (022100@1)time will be a love in there.
F#m (244222@1)   A (x02220@1)        D (xx0232@1)    AIn (x02220@1)the streets of San Francisco,
A (x02220@1)       C#m (x13321@4)     F#m (244222@1)    	      Egentle (022100@1)people with flowers in their hair.


G (320003@1)                 
All across the nation,
F#mG                      A (x02220@1)                                          
such a strange vibration, People in motion.
G (320003@1)                      
There's a whole generation,
F#mG                    A (x02220@1)               E (022100@1)                 
with a new explanation, People in motion, people in motion.


F#m (244222@1)          D (xx0232@1)     A (x02220@1)     EFor (022100@1)those who come to San Francisco,
F#m (244222@1)          D (xx0232@1)     A (x02220@1)     Ebe (022100@1)sure to wear some flowers in your hair.
F#m (244222@1)   A (x02220@1)        D (xx0232@1)    AIf (x02220@1)you come to San Francisco,
A (x02220@1)       C#m (x13321@4)     F#m (244222@1)       Esummer (022100@1)time will be a love-in there.


F#m (244222@1)   G#m (133111@4)   H     E (022100@1)   H
If you come to San Francisco
H      D#m (xx4342@1)   G#m (133111@4)      H
Summertime will be a love-in there