a$.$ Temp.Reg. $$1\mathrm{.}707-5($a$)(2).$

The $1$ in $1\mathrm{.}707$ refers to the and the $707$ refers to the The $5$ refers to the the $T$ refers to the $,$ whereas the $($a$)$ refers to the designation and $(2)$ is the designation.

b$.$ Rev.Rul. $60-11,1960-1$ C$.$B$.174.$

The $11$ refers to $,$ the $174$ refers to the $,$ the $1$ refers to of the Cumulative Bulletin and the $1960$ refers to

c$.$ TAM $8837003.$

The $3$ refers to $,$ the $37$ refers to and the $88$ refers to